Also, the entire resort has been closed to the public through September, so none of the cast or crew will come upon and randos while there.
In case you’re wondering about how The Bachelorette can film at all, considering the recent spikes in virus cases around the country, the cast and crew will be quarantined before they begin filming, and after everyone receives an initial test.
On top of that, the main reason to do everything in one location is so that no one involved in the production has to go anywhere for the duration of the shoot, so that there should be little to no chance of someone who was cleared before suddenly becoming ill.