Not a stupid question, the article is asking essentially the same question

> That brings me to another question… I understand the need for specialized training, but does anyone know what actually happens on these transatlantic flights that couldn’t be done in a simulator or classroom? Obviously these are all pilots who already know how to fly the plane, so it’s just transatlantic operations that they’re being certified on. So is it about interacting with air traffic control, understanding the North Atlantic Tracks, etc.?