Whats the concern?

Its Pathfinder, not D&D, but D&D has similar guiding statements in its core books. In simple terms, elements or topics of play should be acceptable to all at the table and enforced by all, not just the GM. If the group is ok involving topics of say.. rape, slavery, religious persecution, heavy taxation, etc than fine, but if there's something a player would prefer to avoid, bring it up in session 0 and eliminate/change the story for any such scenarios.

If you have a friend IRL that tells you something like "Hey, I was raped. It really hurt me and mentions of forceful and unwelcome sex bring on traumatic memories that paralyze me with fear.", it would be assumed that its a topic that shouldnt be brought up with regularity or jest. We try to police ourselves in what we say to not cause emotional distress in those we care about. In a game setting the same applies, and we can objectively take it into account in playstyle.