Ah yes, because only sleeping with a singular person sets you up as an object, how could I forget that one-sided monogamy disqualifies you from person-hood, that totally makes sense! Also can't have any objectification in my fictional media, that's *totally* bad writing for a story-line about literal mind control.
Don't get me wrong though, the "take arbitrary precautions or it's bad" route is of course bad practice regardless of the outcome being cuckolding or not, but having the outcome literally be offensive as a concept to a considerable amount of the consumer base is probably not completely ideal on top of the already bad design concept itself, just saying.