I would believe this is due to the Governor's directive on non-essential public events of 250 attendants or more. Do you have a link for the 1500 cancellation?
A bunch of us got there at 2:00pm to set up, but were told to hold on while they awaited word from the Governor. At 4:50 it was announced that the show was cancelled, so we all packed up and headed home. The OGCA in Ohio was also cancelled for this weekend, and the huge Oaks shiw in PA was cancelled as well. I hope Knob Creek is not cancelled.