Let me start off by saying that all adding an official parser would do is put console players on more equal footing with PC players, most of whom are already parsing. I'm completely for having at least a personal parser showing your exact damage per second. Think about it - you hit level 60 on your DPS class, with crappy gear. You spend weeks and weeks grinding away for better gear, and as you do so you start to become more comfortable and proficient at playing your job. Why would you not want to see a hard numerical representation of the core basis of your character's gear progression and your personal skill progression?
Without a way to see hard numbers, I wouldn't feel much different having an item level 160 MNK as opposed to an item level 210 MNK for example. "but but", you say, "i dont need numbers to see bosses and trash packs die faster". And that is true. But you are one of two, or one of four damage dealers. Wouldn't you want to be 100% certain that stuff is dying faster because of the time and effort you put into your character, and not because of the other DPS?
There are countless thing in life where your progress is quantifiable and noticeable. A pianist can tell that his practice and time is paying off because he plays music more accurately and over time the music sounds better. A weight-lifter can tell that his gym time is paying off because over time he can bench more and muscle/mass gains are Cheap FFXIV Gil. A calculus student can tell that his time studying and doing problem sets is paying off because he starts doing better on exams, and he starts finishing the problem sets with less effort.
An air traffic controller can tell that his time in position is paying off because his sequencing to airports becomes tighter and more efficient while still maintaining required separation. A marathon runner can tell that the effort he puts into running every day is paying off because over time he can run longer distances without getting tired. I can go on and on. There is an undeniable sense of personal fulfillment as you see these noticeable improvements.
Yet you don't want a way to see that the time and effort you put into your character is paying off? "but but", you say, "i can see my progress on SSS, as i gear more and get better at my Job, I finish with more time remaining". Cool, you can see your progress on a static dummy. Don't you want to be able to say "nice, I did much better on Thordan/A8/Sephirot than last time" with a hard number so you know 100% that you are in fact getting better? "but people will demand screenshots of your dps and people will be excluded from content if it's too low". Well, that's not a factor in Duty Finder, only for groups formed in Party Finder. And guess what? It is 100% within a party leader's rights to set whatever standard he pleases, arbitrary or not. If the standards are unreasonable, nobody will join. If the standards are reasonable, than is he really a villain for setting them?
Mind you, everything I've stated above is in reference to a personal meter that only you can see. While I also am 100% for public meters, I recognize that a personal meter is a nice compromise. But raise your hand if you've played MCH/BRD absolutely kickingbutt but your DPS partner(s) are completely underperforming and you die to low DPS/boss takes noticeably longer, resulting in YOU being kicked or harassed because "brd dps low/mch bad dps". Public meters would PREVENT as much harassment as it would purportedly cause.