Not saying that this really means anything going forward, but it's really funny to me that Bandana Dee's only presence in Smash Ultimate in any shape or form was checks notes a mere upgrade to the regular Waddle Dee spirit. Which means he doesn't even get his own dedicated spirit battle.
It's just funny considering how all of the other popular rejected characters like Waluigi, Krystal, Dixie, Isaac, Shovel Knight, Shantae, etc all got notable consolation prizes like assist trophies, spirit battles, and Mii outfits. Hell, if you go back to Smash 4, Bandana Dee doesn't even show up at all.
It does make you kinda sorta wonder how much Sakurai values the character, tbh.