I would be interested in the thoughts behind the MD8n/717 and Fokker plug type doors. According to the instructions the SLF is expected to stand-up, face the rear of the aircraft pull the handle then unplug and lift the door into the aircraft and lay it on and against the back of the seat.
The overheads are very low in these aircraft so as the
hits the fan you unbuckle and adopting a quasimodo style hunch turn around and try to open and lift the far heavier than you thought emergency exit into the aircraft while several dozen people seat surf at you dragging their rollaboards.
In comparison the 737 outward doors seem far more sensible at least the door is moving in the way everyone wants to go.