That’s part of what I find engaging about it. As a DPS I like riding that line instead of just going ham without a care. As a tank, I like being the tank that can manage threat better than the next shlub.
Things don’t usually feel good until you get good at them. Sorry man but expecting entire game mechanic to change because you don’t feel good ain’t reasonable.
I also think the new tanks need to be toned down and ability pruned when tanking to be more in line with the vanilla tanks. They are miles better then the Vanilla tanks because they barely have any tradeoffs when choosing to tank while the Vanilla tanks have a ton of tradeoffs.
I think it’s dumb and boring, but the answer is you don’t. We’re just there to gather mobs for the frost nova and then back away and taunt as needed. We’re not really tanks when mages are involved, we’re basically babysitters for the gnomes lol