Bad match-ups and characters used are totally irrelevant. No one's stopping anyone from picking any character they want, including the ones with no bad match-ups.
Generally in sports, it's all about winning the biggest events. A similar comparison can be found in women's tennis:
There was a time when players like Wozniacki, Jankovic, Safina were ranked no.1 in the world despite failing to win grand slams (biggest tournies in tennis). They were no.1 cause they played hella tournaments, won some majors and were consistent. Yet, even though they were no.1 by ranking, they were never feared or seen on the same level as Serena Williams (the multiple grand slam champion). In 10-20 years time hardly anyone is going to remember Wozniacki, Jankovic and Safina. Everyone's gonna remember Serena. It's about performing when it matters most, at the biggest occasion.
Let me guess, I bet a bunch of you never even heard of those 3 (even when they were #1), but I'm pretty sure you all know who Serena "f***ing" Williams is.
Man, Evo is the only tourney that has a Wikipedia page (if I'm not mistaken). PL won it 2/3 times and placed Top8 the one time he didn't win. He's #1.