There are too many poop dps doing poop damage.
Then I thought back to myself how is this possible, and remember Guildhests and the job/class quests.
Guildhests teach you mechanics they don't explain rotations that should be done for general dps checks. Granted a lot of people flop mechanics but thats another issue.
What did I do for my Drk jobs. Run into some flames, fight enemies in ishgard and churning mists. What did I do for War run near some light bulbs that conveniently heal?
The explanation of playing ones job is subtle so it's almost not surprising that so many players can't do it, especially when the game doesn't really "test" you at any point during these quests to see if you've gotten the formula down.
Yoshi may feel his team communicated enough but given what I've seen over the past 2 years, they could do with taking their communication further to guide these players.
The game doesn't require parses, it does however need to properly guide its players to perform to the minimum standards it demands. It makes little sense to base content on expected dps minus 10-15% and yet you've got no information for these players on dealing that expected dps. This would be fine for a single player game where figuring these things out is entirely on ones own time, but with 3/7 others players, the majority of 'failures' should be learning mechanics of the fight if you don't know them, not dealing with incapability of doing ones job at a basic level.
You've got bards still complaining in your ear that they can't do damage, then it gets proven that they can, but why did you really here these complaints? Players not properly learning how to play to your standard. Mages who frankly are doing half my damage as a tank when in Defiance/Grit+darkside/Shield Oath.
If I can ask for something in 3.1 its some sort of job specific solo instance quest (as part of the storyline) with its own dps check, scaling all the dps to the expected ilevel that tells em what to do to meet that check. At that point you can figure you've coached all those players to meet the minimum expectation you have for them in terms of dps. They have more responsibilities then that but it's a start. As it is now if you don't meet expected damage, but someone goes above expected damage, you get through which is basically hit the wall enough and someone will eventually carry you.