I find that the decision by airbnb to make it possible for guests to cancel any bookings from about two weeks ago, and at the moment for the rest of the year, without any cost to the guests as a bit autocratic. I usually have strict rules on cancellations as it is difficult to find another large group at short notice. How does anyone know how things will develop? I can take decisions, to close you down, without consultation from a government, of a country but not from a booking organisation.
If I had any say I would perhaps try to find a solution that suits both parties – guests and host , but of course, here you are not given any say.