they do it intentionally. UuU if they wanted everything would be fixed by now.
i also addressed this in my thread
all specs with “bad utility” should blast/be tanky considerably stronger than the utility counterpart then it would be balanced. right now there are no real downsides to dh/pala lol. or some dd/heal specs which are just plain weaker in m+ they also should be buffed
great example is everbloom where squishy specs without strong defs just die on 3-4 boss (even 2nd) this should be balanced with extra stats in case if the class doesnt have great defensives.