The clip where she speaks in a baby voice? That clip? He might be guilty, but that clip does nothing for me. The clip is like 5-10 seconds long with him filming. In a baby voice she say's no, he says I'm close, she says no again in a baby voice, then the clip ends. For all we know, he stopped right there because she said no when he stopped filming.
If you are gonna tell someone to stop, it's a good idea to stop being playful and speak in a tone a person knows you're serious, at the very least cut the baby play talk. We also don't know what she's saying no to. Since he's close he might be waiting to finish inside, on her face, etc, and that's what she's saying no to, not the sex itself.
All I am trying to say is the audio clip does nothing when we have such little context and it's so short. Too many unanswered questions. When I heard people talking about this clip, I really assumed it was going to be something huge from the way twitter was reacting.
If he is guilty, I would be happy to see him in prison and never be seen in esports again. But I can't hold that audio clip in any sort of high regard.