Enmity no longer an issue.

[Nova_Dresden]

An odd side effect of this is that it creates a huge break in tanking ability before and after you have access to these buffs now.

Not really, Overpower and Flash give a good chunk of threat now at lower levels in groups. Single target is still rough in trash situations though in mid levels, but I don't ever tank those instances since the roulette seems to only work as long as you want in Sastasha or nothing higher than Halatali. As long as you get a decent weapon every few levels you can hold hate easier at lower levels now until Defiance and Shield Oath. Previously the numbers were too tight that holding threat became a harder task the more item levels drifted apart, especially at 50.