Na, just have there be a better incentive to use different characters with different movesets and clear strengths + more points for lower rated fighters beating higher rated fighters.
For the meantime, find characters and familiarize yourself with their movesets to shut other fighters down + change your style accordingly don't play the same way with everyone. Professor313 is probably one of the best players who uses lower rated fighters, and he takes the time to figure out things about them that people don't really know.