I've already said this in an earlier post but: parser data is not needed in the majority of the content in this game. Hell, even EX content doesn't really need the data.

Tying in so much of my hatred of healer and encounter design in this game: you know someone messed up in content because they die or wipe the group. There's very little in the high end that can effectively be carried (outside of being outgeared).

One of the reasons people feel fear of carries, imho, is how prevalent they are on WoW. A good healer and solid dps can carry several people, who are otherwise dead weight, below mythic. FFXIV has too many one shot mechanics and not enough sustain damage to pull that off (not here to debate these, but as the topic of WoW and carries had come up, I thought I would mention as someone who used to sell runs in WoW).

So that data isn't really useful unless you're specifically progressing content in your static or for personal use. It's very easy to understand what your party members are doing wrong.. just by looking at them. Hell, most jobs have buffs to maintain and you can track them on the party list. Also when party buffs go out of sync. Also when you see visual ques fall off players.. lots and lots of data already available to us in the game