I think just about all competitive players can agree the wabi-sabi thing is a very bad idea. It reminds me of Tekken 4 where the developers admitted they designed Jin to be the most powerful character in the game, and big surprise, he was the only character used in tournaments.
Maybe they could reach some kind of compromise. Maybe they could add obviously overpowered moves for certain characters, but only make those available in the "special" mode. Similar to how weapon effects are only available in special VS in SC4.