“He is a shape-shifter and his hobbies include making dramatic entrances and having a huge crush on my first officer.”
If Zayn supposedly scuppered Larry's coming out, what is the then actual reasoning to have Louis hop from girl to girl and get another girl pregnant? That doesn't make sense. What makes sense is: let Louis come out, either keep him single for a while or build a guy narrative in for him specifically, post Eleanor. This has not been done. They have dramatically gone the other, eh, direction, so I don't believe Zayn's leaving had any bearing on it. I think that is an excuse.