That's not a very good argument. Shantae, Medusa, Ayumi Tachibani, Wonder Red, Paper Mario, Snake, etc... They all could've brought a unique play style to smash. Does that mean they deserved to get in? Nope. Plus a lot of people, including myself, think there's something fishy going on about the Ballot.
"*Among the realizable characters." For all we know King K. Rool was the top vote and didn't get in because Sakurai thought he was to green. Heck, we didn't even see any of the official results. Why don't we know the top characters from the west and everywhere else in the world? For all we know Bayonetta wasn't even in the top 20. Plus Sakurai said it takes up to a year to create a character, but some how he manged to create Bayonetta, a stage, gather music, get the licensing, and acquire a VA for the character all while also working on Corrin and Cloud. OK...