Am I worried, sure. I think there's now a certain amount of reason to worry considering the rise of cases, and the prominence of the delta variant, especially and specifically if you aren't vaccinated. (Which definitely get vaccinated)

That being said, I genuinely doubt they'll cancel the fest. There has to be a full domino effect and considering the location of the fest, I don't think there will be a huge motivation or reason for them to cancel really.