SE in particular is asset constrained, otherwise they wouldn’t be re-using them every expansion. So I wouldn’t say that’s it’s not a problem. And yeah I agree the gameplay can be boring in XIV, but it would be more tolerable if there was more of it, which requires…. More assets.
It won’t do anything for job design or combat mechanics, but it can help for more exploration zones and things to see and do.
Call me crazy but if dawntrail had 6 exploration zones full of new assets to collect and see we wouldn’t be seeing anywhere near the amount of complaints in this game as we are now. Even if they kept the same combat mechanics. (That being said combat absolutely needs more creativity)
So I do think it's half of the problem.