"As a workaround, train operators could ensure that no aspect of the journey is in any way entertaining."
Whaddaya mean, "could"? In my experience they are alredy pretty good at that even without using any computer aid.
Re "possible paths between trains' operational systems ans passenger entertainment systems" - are we going to see high speed trains being hacked like, say a Jeep Cherokee?
Biting the hand that feeds IT
