It's quite disheartening to see Yoshida and/or the dev team say they don't want to add dps meters to the game because they "don't want them to become necessary".
I don't understand this logic, because these meters, even if not available, are already "necessary".
Let's go by way of example:
Say you're doing Leviathan EX, and you wipe to the first set of spumes, because dps is too low. What do you do? Well, under the current paradigm, you'd disband the party, because there's no way to identify the problem. You just assume the entire PT is awful and quit.
Same thing for any dps check in the game. There's no real way to determine "Oh, Player X is not doing enough damage. We should find out if their rotation is bad, try to help them, or replace them." Instead, each dps thinks they are doing an amazing job and the other dps are bad, and tanks and healers all think all the dps are bad. This is now an even more toxic environment than the one we wanted to avoid by not having dps meters.
The problem just escalates the harder the content you're doing. Back in 2.1, you could have a terrible dps in your static, and consistently fail to kill Conflags in Turn 5... and it would take you a pretty long time to figure out who was the problem unless you had a trusted parser.
Beyond finding out if other players in the group are not doing as well as they should, how would you know how well you yourself are doing without a dps meter? How would you know if your accuracy in any given content was 100%? Because your dps takes a massive hit if you're missing, and the possibility of missing is extremely bad in general (I hope it's not your job to stun/silence!).
The fact of the matter is that there is some difficulty to this game, and without knowing how well you and others are doing in terms of accuracy/dps, you probably aren't going to complete the hardest content, because you probably don't know how to play very well. People know what the optimal rotation is for anything because of parsers. They didn't Rain Man the math.
Just because if we had dps meters person X would talk trash to person Y... Honestly, that already happens. We basically have all of the negative of dps meters, and none of the positive. If more people knew what kind of dps they were actually doing, they would have something to shoot for. Maybe they'd even get better. Or want to get better. Instead of thinking they're amazing when they're actually pretty awful.
We don't need a "dps check training dummy", we need real-time dps meters so we know how we're doing. It's very easy to find out if a tank or healer is doing their job properly or not. Why does the dev team feel the need to obfuscate whether or not dps roles are performing correctly?