It's called dynamics. Ava's the one who offered her a job and made it seem all professional then started with the sexual stuff. It's a subtle implication that if you want this dream job you HAVE to do this as well. Victim blaming here is missing the point.
It's wild how many people don't understand why the last few seasons of GOT were bad and why HOD is completely exempt from it. But dunking on popular thing get engagement so you win i guess.