This is part of GM's broader marketing push to drum up goodwill from younger people. It's the same reason why they have a youtube series about the beginnings of the Cadillac F1 team, which is clearly produced for zoomer and millenial audiences.

I don't think there's anything nefarious here, they are just cultivating a particular image to try to sell cars. It's a reasonable marketing strategy, as marketing strategies go.

Maybe GM is still the legal owner since they were all leased, so that would be a possible sad outcome.