Yes, this appears as if the guests plan on requesting a refund. It seems that this guest also knows how to work the system and what kind of documentation they need in order to request a refund.
This is really unfortunate and I understand your aggravation. I just had Airbnb issue a guest a refund a couple of weeks ago without my consent, so please keep an eye out for that.
As hosts, we really appreciate Airbnb and the platform they provide, however, there are some serious issues with guests abusing the system that needs to be addressed.
Too bad that as hosts, we do not know how many times a guest has requested refunds from other hosts. I bet there is an established pattern with this guest in particular in requesting refunds for Airbnb stays.