Yeah, by the ADA, they shouldn't even report regular injuries. A normal place of work would be liable to trouble if they were like, "Hey everyone, Peter's gonna be walking a big gingerly for the next two weeks. He has a groin injury. Alice in Accounting tore her ACL, so don't expect to see her in the office for the rest of the year." It's not a random convention that no one else does this (in the US at least) -- it's illegal, and if sports didn't have so much money to grease political wheels, we wouldn't know any of those thing about players. That we do makes sense, since so much of the sport economy depends on the health of the players. But it should be cracked down on way more than it usually is, and in a case like with COVID, it looks like they are taking it a bit more seriously.