This is a reoccurring problem in hundreds of other visual novels too. The writers either go completely overboard, or under-think how the MC should think, speak and behave, which is easily the worst crime writers could commit. Since the MC is the main focus of the story, make an awful man-child main character and it won't matter what the story is about. The game becomes unplayable to many people, me included. The last thing I want to read is an effeminate stupid man child that's only purpose would be in cuckold crap.
It is honestly why most avn's end up abandoned early on, for every successful vn there are hundreds of failures.