I can't read the article, but I listened to Adam Savage's podcast where he talked to one of the principles of BattleBots. He described the steps they had to go

I can't read the article, but I listened to Adam Savage's podcast where he talked to one of the principles of BattleBots. He described the steps they had to go through to run/film during CoVid- it included dedicated compliances personnel, with continual enforcement and daily testing. So my guess is that the film company is facing a higher set of standards, and is allowed to operate because it does so.