This is my opinion and I know opinions in FFXIV are shunned and seen as heresy but got a few ideas they could and should change

Weekly tome caps: move it to 450 to 900 permanently would take a month to get tome gear and wouldn't "kill" the content

Ex Trial tokens: move it from 99 to 50. 50 fights guaranteed to get then 99 fights and then will never go back. I think that is fair

Normal 8 man raid weekly weapon token: Instead of 7 weeks make it 4 weeks all the time. Month each class for their weapon if that is what you want.

Glam dresser: I know it was ramped up to 800 but everyone wants transmog. People and devs say "code and server issues". To me I think it is for the people to buy more retainers for inventory space which means more money for them.

Market Board: Since the market board is rife with bots and price gouging/cutting. How about a true auction house where people can bid on the item

Crafting: Especially the crystals/clusters. Is it about time we just get rid of them? What is the purpose of it on top of mats. Materials should be the only thing needed for crafting