I find it kinda off putting.

Counterpoint: there is nothing more stressful than waiting for a cat to clean behind its ears, and then it never does.

My cat always enjoys grooming while he cuddles with me. Not anus grooming, but just fur cleaning. So this is kinda nice.

Hmmm, I think i prefer my grooming glove vs watching her rear leg in the air pointing her asshole in my direction.