Would he have to be pulled back to prevent a fall? Getting hit by a vehicle? Impaling himself on something? no to all
Is this something that would be a concern only at one airport? Could it be any airport? any
Is it relevant whether He2 would have disembarked from a domestic or international flight? no I've never been in the airport of the city I currently live in, but the airports of the last two cities in which I've lived have an arrivals area that consists of a brief walk to the luggage carousel, and then a walk out the doors of the airport to the parking/taxis/shuttles. Same thing in this instance? yes
Does He2 normally do anything significant after leaving Arrivals that could be harmful to him in the event of a cardiac arrest? no
Just to be clear, when you say his luggage was checked at Arrivals, do you mean that after disembarking the plane someone had a look through his suitcase? Or is the relevant thing that he checked his luggage when he got to the airport? I'm confused because in my experience the process of checking one's luggage happens prior to going through security and then the departure gate. Am I misunderstanding something? I was bit confused about the line of questioning, but as long as he arrived, had his luggage and passed through arrivals with or without a customs check and maybe a a passport control, then all is good. No need for passport control if it was an internal flight.