[jameshart]

For individuals, it may not have been. Thousands of people going along to each game all with relatively low individual risk of contracting COVID.

But if after every hockey game 20 hospital beds get used up, that's as risky for the health system as allowing a restaurant to serve uncooked chicken for an evening.

[jonahhorowitz]

The confounder for this is that there was a 2 week lag between the hockey game and cases showing up in the emergency room and we basically (outside of China) gave up on doing contact tracing, so nobody knows how people were specifically infected.