I honestly wouldn't mind if advanced techs weren't in the game. I think the thing that seperates smash from other fighting games is that a new player can pick up the controller and be potentially as good as someone with much more play time under their belt. The moves and techniques are simple, and it's more about when to use them and how then it is about pressing buttons with precise timing or in perfect sequence. Mental skill and tactics are more impressive than button combos.
If i play against a mortal kombat pro, and i'm playing for the first time, i'll get school because he knows all his "down back forward B" and special moves.
Don't get me wrong, i use some advanced techs, but i don't think they are the point of smash. Regardless, new ones will arise and people will find ways to be faster than others.