Low level tanks (pre-tank stance) have a very hard time holding threat after the nerf

[Dzian]

Having that much threat scales enmity meter in such a way that it become hard to read. This means tanks, DPS, and healer could struggle to understand how it works.
DPS classes would also get very little information about their performance early on.

This is where many people go wrong. the enmity meter is not a measure of performance. being number 2 on the threat list does not make you the top dps or any other misfounded belief.

what it does is likely make you the dps that never uses quelling strikes or other enmity reduction abilities until it's too late to be beneficial because if you're number 4 on the list you must be terrible.... or the dps that won't peel off the boss to deal with adds in case he's not number 2 when the adds are dead.

people already misread the enmity meter all the time thinking of it as some kind of performance measure..