But if you look in the Eishel Avraham of Butchach (to 339:3), he doesn’t say that we dance and clap for Tosfos’ reason. He says that we dance and sing on Shabbos because of Simchas Shabbos, and it’s Mashma from him that we’d be allowed to dance and clap even in the Gemara’s time (when we were Baki in making a Kli Shir). I’m almost positive the Minchas Elazar says the same thing.
I assume they mean that we can rely on Tosafos b’makom mitzvah, but if that’s what they mean, they mean the gezeirah never included that (I think Yalkut Yosef says that). They certainly don’t hold you can be mechallel Shabbos for Simchas Shabbos.
Either way, it fits with the normal klalei hp’sak. Not sleeping in the sukkah clearly doesn’t.