Technically already in a horrible mood from an incident last night, but sure I'll bite.
I get it, Waluigi has a lot going for him thanks to his creator's pet status from Camelot while Daisy's original creator is no longer of this world. The air swimming, the toon force, the long purple vines, and other weird **** he can do. Sure he's technically supported to be a weird lanky rival to Weegee, but come on. How else do you think he has no set theme (unlike Daisy with flowers) and get all these new abilities out of the blue.
And what's wrong with the flower moves? Is it because it's a weak gimmick or you're expecting Villager tier wackiness out of her character. Things like Flowerbed Return, Flower Swing, and Crystal Smash can't be done with other characters. If you mean things like the racket and other spinoff stuff, sure I can get that. But discounting those abilities because they aren't interesting enough is some serious downplay.
Remember how "unique" Pac-Man and Wii Fit Trainer was before they were confirmed? And to add more insult to the injury, Wii Fit Trainer never played Volleyball or Hola Hoops, that was all the Miis' doing. What about Ness? He borrowed PSI techniques from his fellow party members out of the blue and there's no way in hell that he should have PK Starstorm when PSI Rockin' exists.
I get that you all expect a lot out of a character's inclusion like uniqueness and abilities that are personal to the character, but I just don't see what's the gripe against her few unique abilities when other characters get a free pass. But if I'm still going to be debunked despite this, well, just do it in a reasonable matter: