But Peter's goop makes one more resistant to getting Spider-Powers if MJ is any hint, unlike Banner's where his blood gives powers, so it's not comparable too.
Look, I know you want MJ to have powers, and if writers really wanted to, they could could retcon and say that the cure only supressed the Spider-Powers, and that they'll return after a while, and without the risk of her becoming a giant spider to boot, and if that happens, or something similar, then we have have a Spider-MJ, but otherwise, there's nothing about MJ getting Spider-Powers that made her different, Peter's goop delaying 'em aside.
Plus, if MJ were to get 'em, I'm sure Marvel wouldn't use Spider-Island, because MJ getting/keeping those powers from what is possibly from Peter's jizz is... Questionable, to say the least, would be hilarious though, but not something that should officially be happening.
Holy shit that's some Joker-like smile.
Seriously, MJ looks kinda scary, it's kinda like Peter in ASM#122, after Gwen died, Peter looked so pissed he was scarier without the mask, this MJ smiling like the Joker is in a similar situation