In my opinion the two dungeons have a huge design flaw because they are very limited.
Gear is reskinned and exp is OK which will make those two dungeons obsolete with any type of decent content that will be released. There is nothing great about them and there has to be something for them to be used in the future.
Yoshi should've added some truly epic gear that can stand out in those dungeons and maybe some exp quests so that the players would be inclined to do them.
Like I said, if he releases another dungeons with good looking gear at lvl 30 and maybe 50 people will just skip the current two and grind till they get to those. If AF will be at 50 I certainly wont take a step inside the Darkhold, I rather grind.