I think we need to keep in mind that at home we pop into and out of a store, staying briefly. When we visit Disney we are around a lot of people for an extended period of time.
So many here are saying 'I feel much safer at Disney than I do at my local grocery store' which is probably quite true but it's the duration of time around other people that needs to be added into the safety factor. Disney = extended amount of time/days in close proximity to others.
So thankful for all Disney is doing to keep people safe but comparing a day at a park to a pop into a store is a little like comparing apples to oranges.