Think of it this way.
50,000 people go to a packed stadium.
A handful of them have a contageous virus.
They could easily pass that on to 10% of the stadium just with a few coughs and handrail touches.
5,000 people now have it.
1% of them will die.
50 avoidable deaths.
That's the risk for each game.
We could have 500 deaths directly attributable to viruses contracted at premiership football matches this weekend. That's an aeroplane crash load of people, before we even get to the exponential spread of those people will infecting others when they get home.
At what point does it become criminally negligent to continue with this?