Yet, if a dev used the same approach for NTR, there would have been a shit storm of the biggest proportions on this forum. I can understand why people do not like a certain fetish and in general it's best practice not to confront somebody with the fact before asking if you want to avoid it.
The current way is organic, but at the same time you're baiting people by making one of the prettiest characters in the game show up nude in front of you with her back turned only to find out a moment later that she has a penis. So I can see how that may be upsetting or disappointing to some.
It doesn't bother me, despite it not being my thing but in the end it's the developer's choice how the game is done.