Healers and the trinity feel broken

[sharknado]

There is no solution in an rpg where stat increases are the bare minimal mechanic of gameplay progression.

WoW did fix that in Legion when they attached stamina/HP to ilvl. With higher and higher stamina you had way more HP so each tier or difficulty version dealt more and more damage so you still could be hit for 50% HP in newer content by a mechanic. Old instances got trivialized quickly though.

So in the first raid of expansion you hit for 100 and could took like 50/100 hit, while by the end of expansion you could hit for 1000 and take 500/1000 hit... Absolute values were going way up but relative ones never changed.