Is the "science" and "data" for theme parks oh so different from that which allows Tesla, Costco, Amazon, Lowe's and many other sectors of commerce to operate ? .
I think the most obvious data-driven answer to that is the necessity factor.
If we have x people gathering in y-sized groups for the purpose of getting food and other daily living supplies, we are weighing extra deaths from covid against extra deaths from malnutrition.
Conversely, if we have x people gathering in y-sized groups for the purpose of riding a roller coaster, we are weighing extra deaths from covid against... ummm... having to read a book instead?
I feel like the data, the science, is pretty easy to understand.