If content is being cleared, no one really cares unless you are doing a quarter or even a 5th of your expected DPS. But in content that requires a minumum amount of contribution and you are physically unable to meet that requirement, then unfortunatelly you cannot expect random players to make it up, especially if it is preventing the rest of the party from being able to clear content. If everyone is awars initially and fine with it then thats different. If I'm doing 1300 DPS and you are doing 700, it wouldn't matter if content is being cleared. If I'm doing 1300 DPS and your doing 200 and content is unable to be cleared, then you are preventing 3 or 7 other people from enjoying the game how they want to by clearing content. Is that fair?
Theres a video taken from an infamously more toxic community then FFXIV on youtube that proves a point in regards to people caring if content is still getting cleared with having someone making nigh on zero contribution to the success of the endeavour. I'm taking about WoW. Aka, no one does.
Theres no solid, facual, indisputable evidence saying the community toxicity will increase or decrease or even stay the same. All we can do is predict (which is far from an accurate science) based on personal experience.
But what we should not do is exagerate to prove a point, or devalue "evidence" that is garnered the same way as what you have stated to, yet again, try and give your opinion higher credence.
Just remember though, we already have parsers in game.
I have no issues with that whatsover. It wouldn't take a genius to figure out if the required content DPS is 1000 one person is doing 1100, the other DPS opted out and the DPS check is not getting met to figure out where the weakest link is. Plus it would still give the other DPS an average result of what they should be aiming for. If it was set to private or public they would be able to still compare (the person using it private). To see if they are close to or nowhere close.