Two flying taxi startups got Pentagon funding

Evacuating casualties though keeps you from having to land a 6 million dollar medevac black hawk with a crew of 4 and support like 1 or more Apache (36 million) and/or Kiowa (5 million) as support gunships.

Depending on the condition of the casualty you could send it in alone or with 1 medic on it. Depending on the distance you could just have it drop in, have the person loaded on and have it hop a short distance out to where a medic is waiting with a more traditional medevac.

You aren't likely to get one of these carrying more than a couple of people due to range and battery weight so primary usage I see is for medevac.