They Should Add An Official Damage Meter With One Condition

[Deceptus]

Damage Meters aren't needed for any high end content in this game, all of it is able to be completed without ever installing ACT of having anyone in your party with it. The dev team thoroughly tests it every time they release something new.
The amount of toxicity they generate isn't worth it. I reject your opinion entirely that they don't cause toxicity.

You're the leader of a PUG party (or even a static) trying to clear the new EX / Savage fight but are having trouble clearing the DPS burst phase mechanic.

You have a a DPS who is putting out as almost much damage as their job possibly can, 90-99%.

You have two DPS who are somewhere in the middle.

And you have one DPS who is missing GCDs.

How do you determine who might be slacking a bit that can help out the group? You're not going to stare at their character during the encounter.

I’ve played MMOs since EQ in 2001 and NEVER has it been needed. Only reason is for those who min/max or for raids to be the first on a server.

If the mob dies before the enrage, you won. You did the DPS needed.

And when the mob doesn't die, it helps to know who you can help as a group improve so you CAN beat said boss.