I think Chocoblanka is decent at the game but her strength lies in her marketability. She a female and a gamer. Or maybe i am just overthinking it and she got it through her connection with her husabando like "if she dooesnt join, I wont" type of deal. Who knows, really.
It's possible they only got her because it was one of Momochi's requirements, but that would speak more about their unfamiliarity with Choco. Momochi is a world class player capable of being a top 5 player year in year out. However, that doesn't mean he would get on Japanese television like Daigo or Tokido. Daigo is Japan's first pro gamer and most successful player. Tokido is a Tokyo university engineering graduate. Momochi is none of those things.
What Momochi does have is being a couple with Chocoblanka, Japan's first female pro gamer. Even if Choco doesn't win, the fact that she's the first female pro gamer in Japan can get her on Japanese television. What's better than that? Well being a pro gaming couple. Now both can get on tv more as a couple than by themselves.
Choco is also more of the on camera personality and handles more of the media work with youtube and streaming. They're a top tier couple and if you were going to sponsor one, you as a company would benefit from sponsoring both.
One just has to look at Mago. Mago is a great player and a bigger personality than Momochi, but he never gets on Japanese tv with the spotlight on him. Why put Mago on tv if you can get Daigo, or Tokido? Momochi would likely be in the same position as him if he didn't have Choco unless he became so dominant and successful that he would overshadow Daigo's success. I feel a bit bad for Mago. The Japanese online community kind of makes fun of him for being unsponsored and always being behind those other pro gamers, but he's at a major disadvantage in regards to image.
