It's a bit much to be glad he's gone, but "made some scenes dark" is an understatement. The Long Night is the climax to the show's single biggest storyline and I couldn't tell what happened in most of it. It wasn't just suboptimal, or annoying, or unattractive: it stopped me from understanding the story at the story's apex. I think it's reasonable to complain about that, and to complain if the same person does it again. (The HotD episode wasn't nearly as bad, but I still had to pause and change my TV settings three times to make the episode clear as it went through daylight/unlit/firelit/daylight.)