2 teams of 12, 3-5 coaches per team, 4 refs...and then the camera, broadcast, stadium, and security crew (all at barebones levels)...with everyone, other than the teams, spread WAAAY the heck out...and cops probably enforcing the closure outside...probably 100-150 total people tops...
Broadcast coverage keeping panic levels down...probably decided the trade-offs were still worth it...
That is the most likely outcome IMO.