The critical distinction, of course, is the difference in a first definition and a third definition. Ask any uber-nerd studying for the SATs which one is more common and which one they'll be tested on. Regardless, I already conceded the point of a denotative overlap and reiterated the connotative difference. Moving right along...
I find my pessimism regarding their collaborative output no more unfounded than your blatant optimism given the context and circumstances surrounding the joint venture. For me to accept it on its face, there would have to be previous cases of success in the realm. Ozzy Osbourne famously worked with Miss Piggy (and let us not forget Kermit working with Alice Cooper). The Muppets have a much longer history positively influencing children (if we overlook Elmo's rather inappropriate tickling escapades of late). However, these musical moments are likely best left in the dank recesses of the mind. I'm an empiricist, and collaborations of this nature frequently bear tainted fruit. To say my skepticism and disapproval of Pixar and Mastodon's actions are baseless would be a bit off the mark.
I don't harbor any grudge regarding this malformed union, but, rest assured, I will set a reminder to revisit this thread once the movie is released to gloat when it is, in fact, terrible.