All that matters to me is this.

Did we beat the boss or did we not beat the boss?

Beat the boss? Good.

We didn't beat the Boss? Let's figure out why so the next go at it is a success.

DPS meters are just pure toxicity and an excuse for certain players to treat other players like garbage. I know from WoW where DPS can widely change if you get unlucky. Such as Boss mechanics screwing you over, procs not going off, and ect.

We don't need that here in FF14.