Not to beat this dying horse, but would reiterate that any purchased "evacuation" or "travel" insurance should be carefully reviewed and compared to the details of the intended travel and the locations of any potential evacuation need.
If the medical evacuation coverage is to transport one from the village clinic off the Parks Highway at Lower Podunk, Alaska to either Los Anchorage or Squarebanks, almost any "evacuation" coverage will provide that since it's on the road system (or at worst, between two identified airports, say BGQ and MRI).
If the desired evacuation is from the Jake's Bar landing spot up the Nizina River, a long 60 minute flight in the 'ol PA-12 from the nearest identified road, that particular evacuation won't be covered by all plans.