While this would be nice, all it really means is after a failed DPS check, it's simply a "okay what DPS was everyone at?" being asked.
I picture this more of a personal improvement tool, rather than a Raid tool. For raids, party-wide parsers would be better, but I don't really think it's all that appropriate to seriously parse people in random casual content without their knowledge. The difference being that in raids, you're trying to improve as a group, where as if you're just plugging or DFing at most you can only really improve as an individual player.