Pretty legitimate as its straight from the game's data.
It confirmed what I figured years ago. Bayo never won. It was suspicious how they said out of "realized" characters and how she never ranked in the biggest region of the world for Smash(US). What it does mean is that Nintendo, along with Sakurai, lied to users. The Smash Ballot specifically say "If you post a video game character, we'll consider turning that character into a Smash fighter." Iwata also describes it as such. Sakurai wanted the character, but thats all I figure the DLC was. It was his wishlist, not yours. This proves it.
The only reason this wouldn't be considered fraud has you had nothing riding on the ballot monetarily. However, you could bring a case against Nintendo for false advertising since Nintendo sold Bayonetta on the pretense that she "won" the ballot but she was always going to be in the game. Essentially, you could file a class action lawsuit to get your 7 bucks back (not considering punitive damages). AT a minimum, you could get the ballot in discovery which would be fun.
Here is the direct where they say they'll consider any fighter.
https://www.youtube.com/watch?v=IMedqo8mLaQ