When i first played the Iris flashback i was so focussed on meeting Iris that the fact that this scene had some... less than legal material flew right over my head.
It didn't give me any terrible trauma, it didn't offend my sensibilities as it was.
The scene is good, it's a good introduction to Iris, nice and cute, but according to the law it shouldn't have been there...
So we entered this unintentional comedy hour, where first Nyx denies there's anything wrong, then she says she's gonna fix it... and she's been fumbling the fix ever since, changing the MCs age in certain scenes but not in others, how long they were together...
Does it hurt the game for me? Not really, i just enjoy watching the mess

And must be said, mess that could've been avoided had she simply removed/skipped the sex...
And in places like this we would probably find "restoration patches" putting the scene back as it was.
But then again Nyx has refused to acknowledge this place exists for a while.