i think that it is meant to be more of a joke. lollipop chainsaw does something similar, you can try to look up juliet's skirt and if you do so for about 30 seconds, she says something and you get an achievement for it.
i think developers are aware of the things players do when they play the game. in super smash bros melee, you can see peach and zelda's panties under their dresses. nintendo learned about this and straight up put a pitch black shadow area under their dresses from brawl onwards. in dissidia012, the camera in the character viewer zoom in is far more restricted on tifa. no other female character has this restriction on them, just tifa. dragon ball xenoverse 2 had a patch drop that makes female characters fade out if the camera gets too close to them. there's probably a lot more examples than what i listed of this kind of stuff happening.