Not sure if it has been mentioned already, but there is also a human/family/compassionate aspect to this all, and players, as already shown by the positive test results, are not immune to all of this.
For example, how long can we 'keep the players' in this country. What about their loved ones in their home country? They may want to see them. They may want to 'go home' for a while, or for good. Heaven forbid, but some of their loved ones may fall ill, or worse.
There are so many issues that are more important than football right now.