I think it has to do with the amount of space. SE should help FFXIV team with updating/recreating the engine/codes, because everything from faces to inventory space is linked to this memory issue that Yoshida is talking about all the time. It has been 4 years and still this issue always comes back.
Its pretty obvious right now that FFXIV team is either underfunded or something else is going on there. Which is sad, because when you see the yearly reports you see that FFXIV is bringing in alot of money. I just wish SE would give FFXIV more love and attention that it deserves.