What are the largest issues plaguing XIV currently?

[DoH]

On the other hand, what motivation would they have for arbitrarily refusing to make it a housing item if there are no functional issues with it?

Also, a retainer is carrying 175 items. The dresser holds 400 with the potential to be expanded in future.

You can have up to 10 retainers (which I do), so the summoning bell can technically let you access up to 1,750 items (not counting the various equipment that you can put on each retainer, which is the equivalent of another 10 glamour plates, and the 20 additional items each retainer can put up for sale).

just want to point out that you CAN have an Armoire in your house, just not a Glamour Dresser

I actually did not know that - I had just assumed that you couldn't because there's no Glamour Dresser option. That's good to know, but it makes it even more baffling why they haven't created a Glamour Dresser furnishing yet...