Personally I'd like to see more bosses that require you to look at what they're doing to figure out what ability they're using. It's an important tool that helps immensely in tougher fights - and allowing more players to get used to such mechanics will allow them to be used more often in future content.

The Aurum Vale has legitimately been one of my favourite dungeons since the days of ARR. It's a real shame that it has been slowly gutted over time.