You’re right. It’s inexcusable if a person decides to take that risk for a preseason game. If that person is in danger, it’s their responsibility to figure out if it is worth it or not, not the NFL, and based on the lack of any government orders, not the city/state government either.
If it’s raining bad here during a severe thunderstorm and I’m hearing there may be flooding, I’m not going out to a preseason game. If I do go and something happens, is it the league’s fault or is it my own?