Mobs just need way more health in general, there's a FATE near Drybone with a bunch of Aldgoats and they have quite a lot of HP. More FATEs like that would be pretty nice.

Something else I think that needs to be changed is the FATEs that require you to turn in drops to end it, and people are screaming "DONT HAND IN" "OMG STOP TURNING IN ITEMS". I don't doubt that farming these mobs for exp is a good but I'm pretty sure that's not how they are meant to be played. They only benefit massive AoE tagging parties so people not in a party get almost nothing unless they turn in these items you can get off the floor, leading them to get yelled at. Maybe if turning in items increased time remaining and started the FATE with a smaller timer it would be better, but I'm no programmer and I won't claim how easy or balanced it is to do.