Offermans character was deep in the closet and his future husband had to break down some heavy emotional walls. It was his first relationship with a man.

Being gay was very much part of the theme and wasn't just some offhand detail about them imo.

There was a lot to the episode but pretending their sexuality had no impact on how the story was told or its impact is silly. I don't think it would have been as touching without it.

Some of you really need a rewatch.