The problem with people complaining that there's no content

[Payotz]

There is a treadmill for pve, but it's optional. Yoshi-P knows that people like to collect mounts, so he makes mounts a reward for grinding the way you do in other MMOs. But he makes it so that grinding that much is not required for the gear treadmill like other MMOs so that people do not feel pressured to grind if that isn't what they really want to do. Doing it with mounts instead is clever.

Yeah! I 100% agree with you, but I think this should expand into Dungeons and 4-man content simply because a lot of people don't like raiding.
4-man content has the capacity to be more variable during the run, so it's a lot less guide reading and more "oh shit let me salvage this pull" which is what's missing in the game imho.

EDIT:

And unfortunately, this is also only in Extremes. I think mount farms are a good step in the right direction, but it needs a little bit more and needs to be expanded towards Savage raids.

Simply put, the game needs content where skill expression is a thing in game that doesn't rely on FFLogs. Cosmetics for clearing a raid under a specific time, or even just a leaderboard for fastest clear times etc... could be a good step in the right direction.