The tests just say if you have got it or not. Which in turn indicates if you are likely to infect someone else. They don’t make the individual any safer.
The company Rovers have flown with in the past are still operating, with aircraft that are carrying up to 40 passengers within social distancing rules.
Personally I will not be taking a vaccine for something that might have no physical effect on me, until at least one year of trials for side-effects have been carried out. Remember Thalidomide.
Personally I would think that the thing most effected by lack of home fans, will be the decisions made by the officials. But this would be hard to quantify, because as we know officials are not influenced by the crowd.
OK, but I must admit I am not a believer in "better than nothing". If something is sub standard, I will not watch it. That is why I will be interested to see how the German games go. I will not be watching, but I am interested in the performances.