F-14 is a big fighter, but not a big airplane in general, especially in the sense JB was a speaking about typically not stalling or spinning “big airplanes” IMO. Since the rockets motors that jettisoned the canopy did so away from the path of the seats (0/0 ejection capability), the whole jettisoning straight up in a ‘flat spin’ and the seats running into them is bit of movie magic.