Are Malls shut down? Movie theaters? Why is there an attack on sporting events? This is a common sense situation that people don't want to use common sense with. If you have the regular flu you should be staying home, resting and hydrating. If you have symptoms of the flu or Covid, which are the same, you need to stay home, rest and hydrate. The problem is nobody wants to be told what to do and they feel like living their normal life is the way to go. So people with symptoms think they can just pop a dayquil and go on about their day.
When you go out in public on a regular you never know who or what you can come in contact with. You take a risk that no one at the movie theater is sick or the person serving your food doesn't have a symptom. If you just do proper hygiene, self quarantine if you think you might be sick or have been in contact with those that are sick and be honest with medical professionals if asked about where you've been or who you have been in contact with this wouldn't be as big an issue. I don't see why we need to go on lockdown for this. If I go to a lightning game tomorrow there's a chance I can get sick from the regular flu from another fan, there's a chance I can get hit with a puck while in the stands or into a wreck on the way to the game.
If they want to play without fans that's fine but they should still play the games. They don't shut down the league when a team gets hit with the flu bug, they didn't shut down when the Mumps hit. If a player is affected do what they do with all normal people and quarantine them and test those they've been in contact with. Shutting down the season makes no sense, if the players aren't affected, if the staff, the arena personnel and everyone who makes the game run aren't then they should play. If Yanni Gourde gets the virus it isn't going to infect the entire Tampa area. The way they're trying to shut everything down you'd think that one person having it would get all 18k people in the arena sick as well.