So what are you going to do about specific powersets required to battle certain opponents on even terms? We have a Drive rider and now a Kabuto one, Clockup and Heavy Acceleration can readily deny any action enemies and allies might try to make at any point, same could happen if someone wanted to use Faiz with Accel or if I'd taken an Accele-Vent card. My guy could drag people into the mirror world and leave them there, after which they'd have a few minutes to live tops. Roidmudes need to be destroyed by Drive tech otherwise they just reform, Makamou need to be fought with pure sound and Undead need to be sealed or destroyed by other undead.

I'm sure there's other examples I'm missing but this is the stuff that jumps to mind, particularly on how overpowered Clockup and Heavy Acceleration are when in settings where they aren't used by every Rider and monster out there. Or hell my own possibility of nulling any threat long as I can push it towards a reflective surface.