I can't believe I'm sticking up for them
but in fairness Clare will have had the meals planned out for the few days over Christmas: Doireann and whatshisname will have had their names in the pot anyway, and they're isolating only a few minutes down the road. I think it's perfectly natural and sensible to just include them in the main meals, especially considering most of the shops are only reopening with a decent selection today after the Bank Holiday etc. Anything after today is a bit much though: drop them some shopping and leave them to it!
anyway, Clare is the Supermom type, she'll be absolutely revelling in having the opportunity to spoil her "babies" and of course have it all documented on social media.