I think the issue would be if you had a plane full of people in body pods, in an emergency deplane scenario all of the pods become obstacles that will end up in

I think the issue would be if you had a plane full of people in body pods, in an emergency deplane scenario all of the pods become obstacles that will end up in random places around the cabin so even if someone is in an aisle seat, they may not be in an aisle seat still if the plane skids off the runway during takeoff and everyone is tossed around a bit.