As far as I know, the only detriment would be that cats need taurine for their eyes and I doubt that bacon would have any.
Probably should check with a vet.
That's strange - I once tried giving my kitten a piece of BBQ pork (Chinese-style; make your own joke here). She wouldn't eat it - licked the sweet sauce off, and then batted it around for ages until my dog ran out of patience and stole it.
OTOH, it wasn't in her bowl, and she won't take treats unless I put them in her food bowl - not from my hand, not from the floor. (She will steal food from my plate if I'm not careful, though.)
Cats are weird.
I had a cat that loved ham. maybe they like the salt