I don't "like" Wario's implementation, but I think -- after having played some of the WarioWare games -- that he's a faithful representation of the contemporary Wario. The majority of his move set focuses on the goofy, crude direction the character's taken in the last decade. Wario Land references are there if you look for them (shoulder tackle, hip drop, giant swing, crawling), but they take a backseat to his WarioWare stuff. I'd be just as angry as you are if Brawl's Wario is what we got in 1999 or 2001, but the focus of the character has changed. If I tried compacting everything that makes the WarioWare games what they are into a character, the results wouldn't be far off from what Sakurai attempted with Brawl's Wario.