Roxxxy spilled this tea in episode 1: At the end of the day, the producers need something to work with if they're going to turn you into a villain. And, as on her season, Phi Phi gives them plenty to work with, because she allows her insecurities to push her into being vile to other people. That's not the editor's fault, and they wouldn't be doing their job if they didn't use all this juicy material Phi Phi keeps freely giving.
Editor's can't fabricate Phi Phi's own words, nor can they fake the other girls' confessionals, who all seem to be saying the same thing about her.
She also lost the benefit of the doubt when she got caught red handed flat out lying about Alyssa's critiques.
There's no feeling sorry for Phi Phi when she constantly does this to herself. Gotta know how to play the game before you stick the quarters in the slot, sweetie.