Tournament style play ruins all the fun of Smash, IMO.
I love items, explosions, randomness, and most of the stages. But that might be because nobody I know can use advanced techniques, or would care to. To most people, Smash is a fun game to play with your friends. When you remove items and limit the number of stages, you're playing an entirely different game. When you take it too seriously, it's not really Smash any more. It's the same reason I hate Netbattle, the Pokemon internet battle simulator. I enjoy both Smash and Pokemon as FUN games, and it disgusts me when people turn it into a game of skill. Clearly, that's not the purpose of Smash. I hope Sakurai DOESN'T kowtow to the demands of "serious" players. I hope he includes more randomness, and I say bravo to the OP for taking a stand.
Have you ever even been to a tournament before? No? Then you cannot jugde whether or not we have "fun" playing in said manner which is in opposition to yours.
Smash Bros isn't a game created for one single purpose of playing; it's about variety. Item play may be common amoung everyone, but just because the game proposes a specific demographic doesn't mean. The variety of the Smash Bros series is what keeps the series alive and popular.
Now, on to the whole "Smash isn't serious" crap. The games presentation may not look serious, but competative play exist in almost all fighting games in general. Because we decide to play the game on a legitimate format doesn't mean that it isn't Smash Bros, it just means that we like to play the game by exchanging fist on an equal playing field without uneccesary random variables that could potentially cause the game to become opposite. It's the same game, were just playing it in a diffirent manner.
According to what you're saying, if we aren't playing an FFA with items it isn't smash. So I guess having the option to customize the way you play is useless, right? Here is a fun fact: Smash Bros wouldn't be a popular game if it didn't have a variety of playing methods. Otherwise, you would just be playing a fighting Mario Party game. Even so, why not try to enter competative play before you pass judgement? The people who play competativly were once casual smashers, but wanted to move beyond casual play into something more sophisticated. Why limit yourself? Just because we play in tournaments doesn't mean that we're not "Playing with our friends".
Another thing that bothered me is when you said "I hope Sakurai doesn't cator to the competative player". Ok, here's the thing, competative smashers don't care about what you do or how you play, yet so many people wish that competative players shouldn't have the chance to play the game the way they want. The reality of the matter is that Sakurai isn't catoring to anyone. Smash Bros. was a game designed to appeal to every audience. Those who choose to play by the demographic often opt against any variety (We have been accused of doing so as well) in playing. The thing that makes me hate scrubs is the constant amount of complaining they do; forcing their crap down our throats, acting as if they are forced to play in the same manner we are. The competative gamer doesn't want to ruin the game for casual smashers, so why does the casual smasher want to ruin the game for the competative smasher? A few answers come to mind: Hypocrisy, envy and stupidity. No one's holding a gun to your head, so play the way you play, and we will do the same.
Now, on to the "fun" theory. That, itself, is simply biased. Another persons definition of fun derives from their own personal opinions. Your definition of fun in smash would be having random variables and hectic imbalances. Another persons definition of fun (The competative Smasher) would be playing on equal grounds in a fight without random variables. We have fun in competative play because we thrive off the sense of technical skill and sportsman like conduct. Fun is a biased word.
And to reiterate for the 1,000,000,000,000,000,000th time:
Go find your own definition of fun.