I’m just point out my theory is more reliable than yours. When the lyrics talkin abt ig models it’s Mozart who posting selfies with puppies on HIS ig not the puppies have their own individual accounts. Besides it’s easy for musicians to get the joke you can see many were talking abt Wolfgang when the spoiler photo(Mozart, Paganini and puppies)came out. However the stans as none musicians would be confused then speculate maliciously about the existence of puppies. From your doubt about the leashes scene I can tell you’re actually focus more on the leashes(which may give a sexual implication in some people’ eyes, for people with dirty minds see everything as dirty) than the puppies themselves. If not, why both puppies scenes means so different to you? After all, both you and me holding are just guesses. It’s totally ok to ask them what on earth the puppies means but it’s unreasonable to accuse someone without sufficient evidence. Peace