Why can't we have jobs with this level of depth and customization in FFXIV?

[BloodPact]

This is X not Y is a terrible reason for not adding in interesting mechanics/depth to the game.
Seriously people who reply like this are stupid.

There is a huge outcry by lots of people for more depth in all areas of the game, from gear, to jobs, to the open world, to monster AI. BUT NOPE THIS IS XIV SO WE CAN'T HAVE THAT NOT AT ALL XIV DOESN'T ACCOMMODATE TO CHANGE OR CHOICES FOR THE PLAYER.

You know what's also terrible? Comparing a system with jobs with abilities up to level 99 that has had like a decade to be polished (and still balance is nowhere near as it is in XIV) to a much newer system that is capped at 50 currently.

When someone comes and references Final Fantasy XI's accomplishments IN THE SAME TIME FRAME that XIV has had to develop then I'll take any of these posts seriously.