A lot of big issues have been addressed, but I agree that the little QoL stuff hasn't been their top priority. From what I can tell, Bungie pretty much tried to reinvent the wheel when they were writing the code for this game, and they made a lot of things needlessly complex, which tends to happen when you start from scratch. This means that even seemingly simple things, such as vault space, may interact with other things that wouldn't come to mind right away. A lot of people like to throw around the old "they have our money now, why do they care?" but those people don't realize that Bungie, and specifically its devs, really just see their salary, not sales profits. They have to work for their money like anyone else, so I am certain they are aware of what the community wants, but either don't have it ready yet or are choosing not to do certain things for reasons of their own.