a bit late on this but about lady tiger being the first sick hero, it is pretty possible that even if they *didn't* forget about rose's illness, which introduced in the same episode she became a superhero.. they just don't think of her as "the sick character". this doesn't really bode particularly well for how they're going to treat lady tiger, if her primary purpose for existing is to be Cancer Patient. but on the other hand it could be that there was some censorship thing preventing them from clearly defining rose as having such-and-such a backstory or undergoing this-and-that treatment, and that in Lady Tiger's case they'll actually use 'scary' words like radiology, chemotherapy, and leukemia (it'll probably be leukemia- i mean i never see anyone give kids *bone cancer*)