Personally, I think SuperBot should stick to their guns. This is THEIR game. Yes, it's a "PlayStation Celebration," but I prefer when a developer stands by their convictions and sticks to the design plan.
Look at the fallout Sucker Punch got when they changed Cole, then were pressured to change him back. In the end, nobody was really satisfied, and Sucker Punch came off as unfocuses and wishy washy.
Look at what happened when Insomniac changed up things with Resistance 2. People went apeshit. I haven't played R3 yet (still on my want list, though), but from what I hear, they went back to the roots of the Resistance series, and the game is excellent.
The Super system in PBR works, and it's fun, and it doesn't just feel like it was put there just to make it different from Smash. It's actually well implemented, just in need of heavier balance and tweaking. It adds a different feel to the gameplay, and is what gives this game its identity. I guess they could put a health mode in the game, but I don't want the game to be like every other fighter. I want it to be its own thing, and it is.
If other people are that turned off by the Super system, and aren't willing to give it a chance, that's on them, but I applaud SuperBot for sticking to their guns about this. So many games have sounded crazy on paper, only to turn out excellent in practice (see: Shadow of the Colossus, for one example: a game that consists of nothing but empty prairies and 16 boss battles. That is all. Sounds horrible. The game is fan-fricking-tastic, and one of my favorite games of all time, and last generation).