Content in 14 doesn’t have the staying power of 11. Due to linear progression once the new patch comes out the old content is all obsolete and there’s no reason to run it anymore other than glamour. Content only lasts about a month in ffxiv. This isn’t the case in ffxi, 12 years later and people are still doing dynamis (the first endgame content added).

Why make complicated and intricate content that is only going to be played for a month? ffxi didn’t have that problem because content lasted years and the equipment stayed relevant until late in the game and when it became irrelevant, they updated the content to make it relevant again.