Any Controversial Aspects of The Return?

Is there any part of The Return that remains controversial in the community to this day? Most times when I see a discussion around it, it only has overwhelming praise. Haven't really seen anything like Season 2 James or Nadine, where people agree it is a weak point.

I've heard Dougie was a sore spot when The Return was first airing, but it seems everyone retroactively appreciates his scenes.

From a personal standpoint, my least favorite part was Diane and Cooper. I liked seeing Diane, but I never once got the hint of a romance between her and Cooper from the original series. I haven't read/listened to his autobiography or tapes, so maybe that provides more context. Still, the whole show makes (relative) sense without the external reading, so it would be weird to start now.

I'm not saying I could do anything better. Just wasn't a big fan of that choice.