I think the previous makes the short haul sound as though you go around with your hair on fire. Flying a mix of both 6/7 hour sectors and the 40 mins to amsterdam. There is no difference of level of activity on a flight deck. I am sure the level activity approaching JFK is no different to approaching amsterdam on a busy monday morning. You get weather you brief, the only difference is the amount of time between flap retraction and 10,000 feet that you have to either "scoff" your breakfast or chew every mouthfull 15 times.
Still not convinced. Agreed the ETOPs element is different, howevere many shorthaul are flying tango routes to the canaries already. Same decisions being made if you lose an engine. You either divert to marakesh on the canaries or you go to Greenland with the 767...
Either way its no black art, it aint rocket science, planes go up and planes come down and how you manage the inbetween is all down to how good your CRM and command skills are.