Medical evacuation (unrelated to method of travel) is specifically one of the benefits of an Amex Platinum card, as long as you’re more than 100 miles from your address. Maybe worth $700/year, maybe not.
If you travel a lot every year, I can see it being more affordable than buying insurance each time. Typically when I buy travel insurance it's $50-200 per trip.
Too lazy to look up whether Amex provides for problems during the trip (beyond evacuation), as opposed to merely during travel.
See: https://www.americanexpress.com/us/credit-cards/features-ben...