Glueball, good points. I also think the sim could never really produce the genuine emotional shock of a real life and death decision. I also agree landing long in the sim is not a good idea. However one can still set up the tight margin landing in bad weather, and then throw in a spoiler or brake failure. That would get the heart going.
One could even set up 2 or 3 of these landings (covering various aspects of the tight margin landing), and then randomly select on which one the failure occurs.