We've used Hi Ho to some degree for decades. Not a fan of playing any song after a win, let the fans do their thing naturally and then play it after 5 mins or something.
I think more than one club's supporters should be allowed to like a song. We were still singing 'You'll never walk alone' in the early 90s for example, and I think it's a shame that it's been co-opted as a Liverpool/Celtic specific song now. We've been playing it since around the time I started going to the Villa at least, so that's what 3 decades or more than I know of. I don't see a problem with it.
Also agree that they should hold off playing it if there's singing going on anyway.