I guess you're of belief that a coyote that hears calling and doesn't go to the source, learned something from that? If so, just what does a coyote that hears calls and doesn't go to them, learn? Has he been educated? How so?
It's been said that a coyote could go to the spot where the sounds came from some time later, maybe so, but I'll bet it's a darn few that do, and even then, what did they really learn?
IMO, the only coyote that a guy messes up when trying new sounds, is the coyote that came, saw, smelled, and/or got shot at. Even then, it's not like he's learned every trick in the book.
So a guy tries some new sounds and messes up a few, it's not like it's YOUR coyotes, so what should it matter.