norodnik, your final statement is a bit sweeping!
With the BA 737 incident at MAN(8/85), some 25 people successfully evacuated through the right over-wing door; 17 out of the forward passenger door; 34 out of the forward galley door; 52 died.
There was actually some criticism that passengers were caught in a "jam" whilst trying to proceed to the forward doors.
In the event, the rear exits were not used, although the rear right one might have provided some value. From the total of 22 rows of seats in the cabin, there were only 5 survivors from the seats aft of row 16, from where 29 passengers and 2 stewardesses perished.