Are you serious? The DK arcade medley/remix is amazing. Although I'll admit that I don't like 75m.
And Morbid, what about those players that want to access the competitive scene without having to learn unnatural commands?
Now that's a very interesting question.
In competitive smash (or any competitive fighter for that matter) it is assumed that players who are competing by logic at least understand the minimal amount of technical aspects to the games engine if not all of it.
The way I see it, an there are no unnatural movements in a fighting game, rather, it is a specified use of every increment of knowledge you have obtained in your pursuit of perfecting your play style. Tech skill is a given at any level of competition that varies between players. Take for instance a Shoryuken in Street Fighter, there will be players who feel that they must execute the full series of inputs (Forward, Down, Down/Forward + Punch). Even though you can use them relatively easily, but the other player uses them more effectively because he understands how to implement inputs into his movements and other attacks by buffering. He could do a crouching punch to convince you that you are open and in that haste, you decide to jump into him for a punish. However, the reality he was holding down and forward, and he can input down and down /forward during his attack, then, by the time it ends press punch, allowing the player to successfully execute an anti- air shoryuken despite the fact that he didn't appear (keyword) to input the necessary motions.
This was possible because he used his base knowledge of the game, beit unnatural to the eye or not in the appropriate situation. The same could be said for Kara specials in street fighter, which is the use of an attack to give your character momentum, or an otherwise unexpected movement. In Street Fighter III: Third Strike, the Character Makoto has a special grab called the Karakusa that has a limited range, but is vital to her combo attacks. The range of this move can be extended by pressing light kick, and quickly during the attack, put in the necessary inputs for the grab and she will step forward with that grab, effectively doubling the range. The player is able to do this because he knows and physically sees that the initial kick moves the character forward, and in street fighter normal attacks can be canceled with special attacks, and additionally that you can input commands during a move. The result is a cumulative effort that was possible due the knowledge that said player periodically accumulated through playing and applying it when necessary. Even in Brawl you have people who can power shield, but the player who can power shield is not going to be as successful as the player who understands his options after said shield.
Tech skill, or in this case, unnatural commands are just applying what you know and when to apply it in as fast an expeditious way possible. It can be argued that understanding when to apply your knowledge is much more important than learning it arbitrarily, as it wouldn't matter if you knew how to wavedash; if you wavedash into my Falcon Punch it won't do you any good. Understanding how you can apply technical skill in a situation is a critical element to playing.
Early in my Melee career I believed the same thing most skeptical entry level players though: "Why do I need to learn this?", "What use are these techniques is I have to constantly think about doing them?", "These techs are dumb and pointless". Sure, it took a small deal of time to actually apply them in battle properly, but gradually it became clear, and I no longer had to think about using them; they became muscle memory. However, I still believed that I could just play aggressive an technical like Silent Wolf, but I got destroyed by top players despite my tech skill. Going to OC3 playing top players in my pool like Bone, PC Chris, Taj , Knives was an incredible experience, and I would have made it by last stock on my last game, both of us being at above 150% vs Knives. Later on I played with players like Ken and learned so much about mind games and understanding the flow of the game; through understanding the game and your opponent, whatever amount of knowledge or technical skill you posses atriculates to the next, so if you understand a mindgame, you understand how to apply the tech skill , if you understand how to apply the tech skill it becomes muscle memory, and so on.
Even after my loss I still have very offensive tendencies, perhaps because I do not care about winning as I do having fun, and I do die quit frequently and in anticlimactic fashion sometimes, but when I get a solid hit on the opponent odds are I'm taking a stock, and once I do it goes downhill since I never emphasized on defense. Over time I realized that I can't just keep rushing in because I feel that the opponent is slower than me or my response time is superior, so I respected my opponents knowledge of my technical skill in the game and was able to find better openings. I changed the way I played slightly, but I still retained my punish game by capitalizing every offensive opportunity presented. This was due to me playing and refining my knowledge of the game and realizing that I'm not doing anything out of the ordinary, or even anything that I didn't do when I first started playing the game. The difference was in applying it and understanding how it would benefit me and my opponent the most and gradually working it into my playing.
While it isn't necessary to understand tech skill, it does benefit you; by understanding how to use these things you understand how the opponent may use it against you, regardless if you want to apply your knowledge or not. Everyone's style of play isn't the same. Become successful by applying your knowledge of the game instead of knowledge of the tech. Use everything to your advantage and encompass the technical aspects of the game and apply it when you see fit. In the end it all boils down to applying whatever you know that you can do quickly in a calculated fashion.