Hopefully those people have some means of communication by which off-airport RVs, authentication and rotary transfer can be arranged; I'm wondering if supporting that activity isn't a better use of inbound C-17 capacity than bringing in more troops?
I have read a report this morning concerning French, British, German SF forces doing operations outside the airport, and Kabul, to rescue groups of evacuees.
The report commented that the USA was complaining about these operations, which they are not letting their own forces perform, on the basis that they were a hinderance in their negotiations with the Taliban over the cut-off date for all evacuation operations.
What the truth of that is, and what negotiations are going on, will doubtless come out in the days to come.