I think we can all clearly see a few facts:
- There are 6 DPS jobs to 4 tank/healers in total. This generally means that there will be a larger number of people who play DPS roles.
- Coil (endgame) is only really done by a really small percentage of the playerbase. Like maybe 5 - 8% (pulling numbers out of my ass here, it could be smaller for all we know)
- In the interest of preserving the feelings of the larger portion of the playerbase (DPS players who do not raid or do anything considered "hard", or requires DPS optimization), hence why DPS gets a free slide from underperforming
Barring Coil, you'll find that most content requires like 1 or 2 good DPS players, and these few tend to be more than enough to put up for weight of the other sub-par DPS players. Perhaps Yoshi-P already had this in mind when he came up with raids like the CT series. You can clearly see it even in design - there's 2 DPS players per light party, not just because DPS players are the majority, but because both players combined usually only end up having to hit a lower DPS threshold.
Tanks/healers still happen to be the rarer of the few, and for some reason Yoshi-P decides it's okay to let the DPS players rag on them for underperforming. Then we fall into a spiral where said tanks/healers become demotivated, and we get even less of them in circulation. Perhaps we all need to look inside and realize that until people embrace improvement and generally decent human behaviour, Yoshi-P won't give us the parsers we want.
I am all for parsers. I am all for advocating better play. Fact, I use parsers myself, and I do get a certain joy when I outperform everyone else. But the only time I care about my numbers is Coil. Outside of that, anything goes.
But until the community can embrace calls for improvement as an actual call for improvement, and work within themselves to improve and go to a higher level, rather than treating every little thing as an insult, or a personal attack, we are going nowhere, and official parsers will never see the light of day. I play on a JP server, and I generally never see this issue, except within the EN players.