>>149495378she was never fine, she was just unoffensive.
she's the worst kind of super hero, one that is presented at the very end of all their building to become the hero instead of just the man or women.
even her tragic crybaby backstory is something she shows no suffering over in the present, all her development happened off screen before we ever even met her.
there are ways to do this right, and it has been done by better writers in the Super Hero Genre, and I present to you, All-Might.
why? because even though we meet him he's already such a perfect hero that just him existing has cowed villains the world over.... he has to start the hero's journey again anyways.
he has to find his reason to continue in a world where he's powerless once again, and worse, a cripple, nothing more now than a mentor and a figurehead, and by later in the plot, a known powerless ex-superhero to everyone.
how does he cope? he gets back on the horse, suits up, and faces his archenemy once again, he learns to smile all over again, he laughs boldly in the face of death against a being he can never beat.
https://www.youtube.com/watch?v=QFgR8yXk-zY
THAT is how you do that character type, not just make a flat character who goes fucking nowhere then dies