Uh where did you get that from? My point being if every attraction can find room to hold all of their cast members there’s no reason why a show with less people than most major attractions (including techs) can’t run.
1. There’s not necessarily more cast members on an attraction than a show.
2. Attractions generally have a larger foot print than a theater, thus more distanced cast members. Think of where cast are stationed on Thunder Mountain compared to staging of FOLK.
3. Backstage isn’t big enough to socially distance in most theatres
I really think you’re underestimating the amount of people who work on these shows.