LET THE BUTTHURT FLOW THROUGH YOU AHAHAHAHAHAHA.
Seriously though, I'm a tiny bit bummed out, but I'm just going "Oh well".
After all, there's a Brawl hack for Waluigi with a custom moveset, final smash, and soundpack.
And Phantom Wings finally finished the clone engine, so I might be able to actually ADD Waluigi without replacing Pit or any other character files... I tried it with Roy and it worked. Woohoo!