I am a mage (just getting that out there first).
even after the ability to slow world boss is gone its still not balanced. My idea is to take away archer passive HP boost and make world boss ulti out 10% of what it is now. So a Knight may live through numerous WB ulti with his high mitigation and therefore not get as many re-spawn timers, a mage would use up some turns and rage on heals to survive longer, and an archer would do their mass damage and re-spawn more than the other classes.
Somewhere in there would be a balance achieved where different classes of the same BR would be comparable in what they can earn from WB.
As is stands now archers do loads of dmg so they get more out of world boss, tormented necropolis and now also in sky trials.... meanwhile knights get a raw deal.
Not complaining, the game has always been this way, just a suggestion. and i really don't see why archers need HP boost they are not meant to be tanks, they are meant to be the damage class.