They really messed up with cutting the Garlean expac. Then they screwed up even more with the way the end days and its cause, which likely partially a direct result of cutting said expac. And don't even get me started on how they squandered the Magus sisters and Anima. Granted I was tired of Ascians and Garlemald, but this was not the way to close the story.
I don't really think this game will age well like other ff games just because of all the dropped balls, rushed stories, leaning way to hard into manga style storytelling and a turn into catering to the most casual of casuals, the kind who have difficulty with more than 2 buttons, above absolutely everyone else. XIV's level of UwU, chibi, saccharine is also going to be too much for ppl outside of a few select groups. But to be fair, the FF franchise as a whole has been going downhill since XII, the last great FF game imo.
So much care was put into XIV between 1.0 and 2.0. There was so much good will, so many ppl cheering them on and SE really seemed to hear us and care. But now it feels like they don't care, and we are just screaming into a void because they are going to just do what they think is going to net them the most profit right now, with little care to what it does to the game, its legacy and the franchise, like most gaming corporations at this point. Instead of making a good game that will bring in a steady stream of profit for a longer period, because that doesn't sound as appealing to share holders.
I really hope XI gets a proper reboot so more people, especially lore and story enthusiasts can enjoy it, because that was some amazing mmo story telling that makes most of XIV's look like borderline fanfic. I also attribute that to each expac being it's own individual story with its own cast and antagonists, less busy work and more willingness to lean into dark themes.