It’s long-past time for this QoL for Pandaren. In fact, why not have toggles for all races for the underclothes look or a ‘civilian’ set of clothes (kind of like how the Pathfinder CRPG games do it) when armor is made invisible/unequipped rather than being in underwear all of the time?
I mean, also fix the neck seam when you can, but I’ll tolerate that for as long as I must if I can finally kick these sandals off.