I recently needed a flight to hospital.
The cost? $55k.
Health insurance doesn't want to cover it, because it was vehicular.
Motorcycle insurance doesn't want to cover it, because it was not my motorcycle, and it was off-road.
I can only imagine what the parties may say if injuries were incurred whilst <gasp> racing.
Afterwards, I found that, yeah, insurance is offered for medical transport, via air or ground.
...as if we didn't have to purchase enough insurances for everything already.
You can purchase insurance for, in case, your dog needs cancer treatment, for instance.
...but maybe having med transport insurance is a consideration.