The British Airtours flight that had a somewhat similar evacuation issue shows some interesting results when survivor seat locations are calculated as shown on the Wiki page for thes flight BA 28M. An analysis afterwards appeared to show that some people were frozen in their seats while some clambered over the backs of seats and pushed their way out.
Some people 8, 9 and 10 rows behind the over wing exits managed to get out OK whereas some people just two rows away did not. It was suggested at the time that some people had a "survival at any cost" reaction.... which just goes to support what you are saying, one never knows how one might react in such a situation