My take is they're a little more cautious than full Arch. Arch will just push stuff because it's "ready", Manjaro does at least some testing so I'm not the guinea pig.
I don't have any issues with AUR stuff though, everything pretty much works out of the box.
Even without that it's not about furries, they're thinking of therians. Furries just think anthro animals look cute, not that they're an animal in a human suit.