I keep seeing people asking what has happened to the game. Why does the content feel like copy/paste? Why is Eureka...what it is? Why isn't the Dev Team trying something new?
The answer is money. The money we pay into FFXIV in sub fees doesn't go back into FFXIV. It doesn't make sense to expect that it would, to be honest. Don't you think Blizzard funded the development of Overwatch and Diablo III at least in part with funds from WoW sub fees?
Square isn't in a great place right now ( https://www.kitguru.net/gaming/damie...-million-loss/ ) and is likely looking to cut costs. They already have a team working on our next expansion, certainly, because that is likely to sell well enough, and doesn't require a large investment. No new tech is being developed for it, the servers and engine are already there. Other then new overworld maps, an expansion is basically just like getting 5x patches worth of content at once.
Without funding, what the Dev Team can do is limited. With the company losing money right now, the Men In Suits are not going to look kindly on scraping ready-to-go content. I'd imagine, based on player reaction, the Dev Team would love to re-work some of those ideas, but they can't.
Something we forget is they also can't directly come out and say "We've seen the players hate this, and want to re-work it, but we can't because money". Even if they hated they way it came it out, in interviews, they are going to say "Yes, wait for what we've made. It is so exciting!" Why? Because it is their JOB to make the game and company look good at all times.
This is something much more ingrained in Japanese culture versus Western. We are used to things like actors saying that their new movie was a trainwreck to film, or game devs saying a product was rushed and blaming the publisher. That just isn't how they roll in Japan.
So, TLDR: The current state of our game is due to economic realities, not that the Dev team doesn't listen. Money from FFXIV is going to prop up the development of AAA titles that SE NEEDS to get out the door in order to stay open.