I'd be all for them personally.
However I wouldn't want to get my hopes up about seeing them in any truely authentic manner because they are digitigrade which would be a major issue with the foot slot as is.
From memory, WoW got around this by having the ankle/lower shin and foot pieces being distinct, so you still got the ankle cover, just nothing over the hoof for Tauren etc. I'm dead certain FFXIV doesn't have anything like that so Burm's would either have to have regular legs and feet or would need to have some kind of hard coded variant foot item specific to them for legacy gear as well as potentially unique foot items going forward.
To me it feels like a race that needed the support to be there from the get go to really work properly.
*edit* Bangaa have a similar issue although there is historical art of them wearing regular flat boots and shoes at least.