What's funny to me is starke describes changing that one scene with rewrites and says it takes 2 hours to do. And I think, "2 hours for 1 scene? That's a lot of time." But then I think back to my experiences translating games and remember some scenes took all night to rework.
Not sure what scene we are talking about specially. buuut...
Just to think all the dialogues out, the words and grammar and get that correct could takes a lot of time alone.
Starke is also the person to create the scene itself, the artist don't do that part.
If you look at page 229, and see the last spoilers, and their difference, that's Starke working his magic to get everything right.
Pants and shirt added, background, movement on the dick and so on... that's why it take long time.