Terrible idea and there's a reason why a DPS meter hasn't been implemented in the game. PvP stats work because PvP is literally about competing. Besides the objective, the scoreboard is the content. You aren't competing against people in PvE you're competing against a boss. The second that a dps meter would be implemented, people would stop caring as much about mechanics and start stat padding so they can screenshot it for Discord. As a WoW refugee, when people start obsessing over DPS it brings in harassment and elitism every single time. It doesn't matter who in your party is the lowest on the DPS meter as long as the content gets cleared.
If you care more about numbers than the duty complete screen, maybe you're playing the wrong MMO twin...