This is untrue. Infinites aren't banned, there is nothing wrong with infinite combos, even ones that are easy to do. Something should only be banned if it throws off the balance to an extreme extent. There's absolutely no evidence of that so far.Umm... "real" fighting games do ban infinites that are full life to death off of a single opening. Well, more like they ban entire characters because then they'd be deemed too god, but the Smash kiddies don't wanna ban entire characters, so they just ban infinites.
And you're right, banning the character or stage is a FAR better solution that telling a player they can't play a certain way and drawing arbitrary lines.
Infinite combos aren't (and shouldn't be) banned. Stalling to gain an advantage (running away, turtling, etc) shouldn't be banned. Unnecessary stalling that serves no competitive purpose is banned.
Just wait. Hopefully reasonable people will make their voices heard once the time comes (not anytime soon).