Unfortunately I can't access the article, but this video by Juan Browne (IMHO one of the most knowledgeable and no-nonsense aviation YouTubers) also provides a very good summary: https://www.youtube.com/watch?v=Dcyup4xVQuM
What I found shocking is that there are so few road ambulances in that region that medevac flights are routinely ordered for transporting patients to keep ambulances available in case there is a road accident (https://www.youtube.com/watch?v=Dcyup4xVQuM&t=95s). Seems like a huge waste of resources to me...
I’ve spent a lot of time exploring that area of NM, and it’s incredibly rugged or desolate terrain, with low population levels that are very dispersed. Mostly ranches and wilderness.
There is a reason why the military does exercises there.
Neither here nor there but that whole upper NE corner of the state only has a handful of hospitals - in part because there just aren't that many people who live there.
NMLEG map of counties and population | https://www.nmlegis.gov/publications/handbook/counties.pdf
wiki 2020 census map | https://upload.wikimedia.org/wikipedia/commons/a/a2/New_Mexi...