Things like this make me confused about the rules. Regardless of being tested beforehand surely we should all be promoting the correct behaviour when millions of people are watching?
Don't really see the problem if they all tested negative. A little bit of normality is welcome because things are not good.
For example, I've never seen as many people putting their decorations up this early in all my life. My FB has been full of pictures over the last few days. I think people need a little bit of hope and a morale boost.