To coding skill? It doesn't, necessarily. But that's not what she's arguing; she's saying that there's a correlation between playing video games and interest in (and exposure to) computers & coding.

I don't know if that's as true nowadays, but back when I went off to school in '97, video games were essentially the only way a kid could get exposed to computing in a way that was fun, interesting, and challenging. They directly led to my interest in programming.