A word about the Fedex MD10: I was there that day and have been thoroughly briefed on what happened, including the ground egress.
The fuselage was canted to the right so that the left (upwind) side slide merely curled under the fuselage. The jumpseaters thought incorrectly that it wasn't inflated. They pulled a T-handle on the slide thinking it would encourage inflation and it separated the raft from the airframe instead.
The right side door showed smoke and flame through the window so they didn't open it.
The only route of egress available was the captain's DV window. All 7 people aboard formed a line to get out. It takes a moment or two to contort oneself out a window and transfer one's weight to a strap. Thus, there was a bit of a delay. The jumpseaters, at the end of the line, decided to make themselves useful and pitched a few bags out the open L1 door.
Perhaps they got a little task-oriented, but I thought the resulting criticism was harsh. Window egress takes alot longer than a slide.