It took some work tracking down, but it looks like the Creative Director of the Santa Monica Film Festival took part in an Zoom webinar last year run by the anti-vax group Vaccine Safety Research Foundation.
It seems to have included Dr. Ryan Cole, who had his medical license restricted for spreading covid disinformation and whom it appears the Creative Director called a “hero” in the chat transcript.
So I imagine that’s why there are three films tied to antivax movement this year.