I wonder where exactly that family was from. The NY tri-state area typically refers to various counties in NY, NJ, CT that are a certain distance from NYC. It does not apply to the entire states. I am from southern NJ which borders Philadelphia and the number of COVID cases in South Jersey are much, much lower than in northern NJ. South Jersey is never considered part of the NY tri-state area, it is part of the Philadelphia tri-state area (NJ, PA, DE / aka the “Delaware Valley.) If I were going to Disney it probably wouldn’t even have occurred to me to check to make sure my county isn’t part of the restricted area. Disney should really clarify which counties are included in the “NY tri-state area.”