My 2 cents on "Teching"
OK so lets clarify, I am very new to the competitive fighting scene, and the fighting genre in general. I've really only started playing them since the begging of this year, and am still learning of the techniques and terminologies.
But I want you to look at this from a much broader standpoint, not from a "competitive smash" or even a "competitive fighting" scene in general, but strictly from a gaming standpoint. As far as I know "Teching" is referring to the use of a glitch or bug in order to enhance the playstlye of your character.
Now I watched a documented on competitive Smashing (Hell, it may have even been made by this forum). On competitive Melee and one part particularly interested me. It was during one of the tournaments, one of the players would win every single match, and won the tournament with an almost perfect match record, he did this throughout the season, and even started using some of worst character in game! It wasn't until really the end of the season he revealed that he was using a form of tech called L-canceling, which (As we all know) allowed him to Recover faster than normal.
Of course you all know this, so where am I getting at?
I want you to imagine something like that happening in a different genre, for example, if there was a formation glitch in Starcraft that allowed units to take less splash damage from a seige tank or reaver. Or a glitch in Call of Duty that allowed someone to heal half a second faster than everyone else. Now imagine someone find out and using that glitch to win the tournament without telling anyone! Everyone would be up in arms, they'd be furious! They would have demanded the winner to have been stripped of his prize and probably bar him playing in another scene again!
Glitching the game in order to win is never the optimal way of playing a game.
Does that mean these sorts of things need to be straight up removed from the game? Not nesserialy!
Let's look at another example, much like this, there were two games that had much the same problem. They were First person shooters, with the same glitch. The games were quake, and Call of duty 4. The glitch was that, using the blast, people could use the extra momentum in order to jump to areas of the map which shouldn't have been accessible, aptly named "Rocket jumping" and glitch though walls or shoot from areas other couldn't shoot back in. Now these two games took two completely different stances. Call of Duty 4 removed this glitch completely, stopping any momentum gained from an RPG blast. Quake on the other hand, rather, intergrated this glitch into this game, readjusting the levels so that rocketjumping is viable, reduced the damage taken from using the rockets to jump, and integrating that technique into the games tutorial.
Which technique was better is a for of subjectivity, but one thing is clear, both communities were better off because these said glitches were addressed!
Now, why is teching more generally accepted in fighting games? I believe it's because it's one of the few competitive scenes that didn't start on the PC. They started in the arcades, on a machine that was designed to nickel and dime you, a machine that was set in stone once it was released into the general public. There was no way to a address these glitches once they were found, and hell, sometimes you needed to use them in order to beat the game. Which is why I think Wavedashing and L-canceling is generally accepted in Melee, you can't remove it, you can't integrate it, it's now just a part of the game!.
But it's 2014 now, the internet has access to everything, there is no excuse for leaving glitches and bugs into the game, there shouldn't be any need for "teching" and in all honesty it's very unfair to Mr. Average Joe who doesn't know how, or where to find this sort of information and could lead to a massive segregation in todays community.
If Peach/Rose/MM suffer from losing this ability to tech, it can now be substituted with a buff to one of the movesets in order to gain a similar result. There is no reason to allow this sort of thing to take over nowdays.
TL:DR Yes, the glitches need to be addressed, either though integration or removal. If they suffer from it's removal, they can be buffed to compensate.
Back to the balancing, don't mind a little Little Mac nerf, as long as it's reasonable. Hoping Ganondorf gets some form of buff considering he has no projectiles, is as slow as molasses, no combo potential, and is really hard to enter engagements with.