Yes, COVID-19 is still with us, spreading unchecked through our nation. If you think this isn't the case, then wake up to reality. The NFL can do all of the testing it can do and other mitigation protocols, but all it takes is one infected person close to a team to screw things up. And since the number of games in a season is really low compared to other sports, one team out really upends everything.
Of the four major US professional sports, the most successful at this were the ones who bubbled, specifically the NHL (which just finished their season) and the NBA which is going into the Finals. Baseball had lots of problems early on and still occasionally gets positive tests. For the NFL, it was sadly only a matter of time and that time has struck first here in Nashville. All it takes is one person who is either careless or unlucky in the three mitigation strategies (masking, hand washing, social distancing) to ruin everything.
For me personally, my family is faced with the prospect of deciding whether my daughter will play club volleyball this season and my wife and I have already not been impressed with the COVID-19 mitigation strategies for that sport and the league. I don't want to have to tell my daughter she cannot play her favorite sport, but we have a medically sensitive family member and we cannot bring this disease home. Not to mention you have no idea what it might do to someone who is otherwise healthy.
If the Titans and the league is lucky, the number of cases won't be more than the reported ones and it will be a wakeup call to everyone to be more careful. But sadly, I think this gets worse before it gets better.