Just look at fitness influencers, atheletes, male and female who have peak human bodies as examples, ppl like showing off their bodies when they are physically fit and look good.
I never got the whole oversexualized angle when it comed to most comic book appearences, they look very tame compared to rave or even gym outfits meant for mobility, do superheroes not need mobility?
Ok, but then why would a psychic need to be dressed this way? For fighters that makes sense, but scarlet witch? Emma Frost? Jean grey? They have no need for high mobility.
They are also peak superhuman, I think my post implied their powers make them superhuman, they often just are because of their lifestyles of constant battle? They train at xaviers, I may be wrong but they are always drawn as being ripped for woman because they work out and are constantly goong through survival shit? They may be psychics but they dont just sit around they are active af
God forbid they go on a run offscreen, and my logic was the powerless show off their bodies, so why wouldnt ppl in their costumes, not necesarily that the powers give them perfect bodies, their lifestyles give them perfect bodies.