The logic is based on what is possible.
It is not impossible to achieve a match without a meta character. You can get that without a nerf.
It is impossible to achieve pre-nerf benefits from nerfed code.
Nerf is everywhere, and permanent where self achieved non-meta matches are merely hard at worst.
To put it another way to address the “selfish” term.
Allowing meta characters to stay strong might hurt you sometimes but it’s not guaranteed so in theory abstaining from definitely hurting people that enjoy the meta every time doesn’t seem selfish or at least not as selfish as forcibly guaranteeing a always hurt to some in order to avoid the mere risk of a sometimes hurt for some.
The possibility and frequency disparities do exist regardless of what magnitude your skill level gives them.