Back to the topic at hand:
It sounds like a nice idea, but I don't see that it is very practical, not only would it introduce many additional points of potential infection, with the host getting the stuff, packaging it, and then getting to the guest, as well as potential liability if it were ever proven that a guest got the virus from the care package, it would be hugely expensive to put together 14 days of meals. Possibly, a small package of some basic staples that would get the guest through the first day or two, but the issue of contamination still exists.
For those hosting now, though, adding in a list of local places/apps for food delivery would be nice.