I just feel that it's now a small group of BJ and DCs favourites, sitting around a table (socially distanced to the best of their ability - do they know what 2m is?) deciding what they can come up with as the great idea for the day

I bet that on Monday they will announce that face garments must be worn in shops.
I think they may say that on Monday for shops as well, but at least they can say they are following WHO advice!
They won't, in all honesty, be able to say they are following the 'science'!!!
But even 2 metres isn't agreed on by all countries/all scientists - WHO recommends 1 metres, other 'experts' say 2 metres isn't far enough.
All you can do is your best, which hopefully will be good enough. I will make my own judgements on some things, and I will try to follow the law, though as it changes every week or so it might be difficult to do.
Little old grans and others with no internet access or family/friends to keep them updated could fall foul of the law.
Regards Margaret