I would certainly consider Smash4 some kind of holy deity, it's the 4th game on the Smash Brothers series. Also, I don't think you're interpreting Sakurai's words the right way, he was trying to say that a game where every character plays pretty much the same with a few differences would be boring. PM has balance problems too, because it's impossible to achieve perfect balance, and I don't see why Sakurai's philosophy isn't working out, most characters on the demo seemed pretty even with each other, even Link and Samus are reported to be much better than all past Smash games, Mario's good now, the only character who seemed terribly underpowered on the demo was Zelda, and I'm pretty sure that word has already gotten to Sakurai.
The balance might not be perfect, but we have patches now and a bigger, more experienced team. If anything, there will be tiers, but they will feel much closer than before, I'm certain this game will have at least three times the amount of viable characters that Melee and Brawl had. At release, the game might not have perfect balance, but I'm pretty sure it will slowly turn more and more polished until we have a fully-viable cast.