I don't think it's really a corruption mechanic. If it is, then I agree with ffive that we're to early in Holly's story for it to be a full on Eva from GGGB, becoming a slutty drug using gang whore doesn't really seem in the cards for Holly for at least another 5-6 chapters.holly change stands for corrupted holly in the future there will be 2 versions for holly sweet/innocent like at the moment and corrupted
like in her old game good girl gone bad with the best friend that had 2 versions in the changed/corrupted version she would do all kind of dancing/cheating and slutty things that made logical sense for the corrupted/changed person to act that way
so yes it would make logical sense for corrupted /changed holly to act more likle ivy/corrupted lena in the future
All of the changes for everyone in ORS has been much more of a slowburn than what we got in GGGB. Pretty much as soon as the first club scene in GGGB, you can have a fully bad Ashley and Eva.