People need to understand why power leveling and the speed of leveling are the way they are in 1.x.

Yoshida has said that he wants new players in 1.x to quickly catch up to friends and to be able to enjoy one-time content. And that things will slow down in 2.0.

The "level to learn your job" is a moot point when every few months drastic changes are made that render us all "newbs" all over again.

I leveled my Conjurer to 50 prior to 1.20, but haven't really touched it since. If I were to play it now, I'd have no clue how to do it. That is, until I read the ability descriptions.

Bad players will always be bad players. All it takes to play a class/job functionally in XIV is the ability to read. If someone can't be bothered to do that, no amount of time spent grinding exp will change them.