@Hideout0I am so sorry this has happened to you. I am not saying you will get anywhere, but I would keep fighting this decision if you can (try posting on Airbnb's social media, Twitter, Facebook etc. to see if you can get anywhere that way).
Even if these bookings do not fall under the current COVID-19 EC policy, I think they do fall under the normal extenuating circumstances policy, so tell Airbnb that. E.g.
Circumstances that require documentation:
Government-mandated obligations including jury duty, travel restrictions, court appearances, and military deployment. You'll be asked to provide a copy of the official notice dated after the reservation was booked, including the name of the person fulfilling the obligation.
Circumstances that require special review:
Natural disasters, terrorist activity, and civil/political unrest that prevent the guest from travelling to or from the destination, or that make it unsafe to host guests.
The policy also lists:
Epidemic disease or illness that suddenly affects a region or an entire group of people. This doesn’t include existing diseases that are associated with an area – for example, malaria in Thailand or dengue fever in Hawaii. Any updates to our policy regarding the outbreak of a disease, and the scope of policy application, will be determined based on announcements by the World Health Organization and local authorities.
While they might refer you back to the COVID-19 policy, note the part I have underlined here about announcements from local authorities.
Again, I am not saying you will get anywhere. Airbnb CS are making the most illogical decisions right now. Maybe it's worth a shot though.