All very true; but I don't think very many IC engines have died just because the owner took a longer than expected trip and came back to the airport to find their vehicle's engine is destroyed. Furthermore, the costs of any such IC repair wouldn't be nearly as high as what it is in the Tesla.

The point is simply that Tesla should give more warning and attention to the very high cost of repair when you forget to plug the vehicle in or leave it unattended for long periods of time.