What is the point of playing tank other than warrior?

[BarretOblivion]

‘The game is not balanced around 99% of content’
…am I the only one who sees the issue with this?

You probably are. Unless that content physically can't be done by all jobs comfortably "see GNB/DRK eminty changes to gap closers" a proper dev is going to balance the game around the end game, else you get a situation where jobs are unable to do end game and you have a situation like we had in Heavensward where PLD was unplayable unless it was a fight doing physical damage and not magical. That's a worse feeling than maining a job that's slightly weaker than the others for end game, than being forced to job change because your job wasn't taken into account for end game content and it was impossible to clear that content?