If you think about it aerodynamically it is impossible unless the aircraft is extremely over powered and have a fuselage producing an ungodly amount of lift.
1) Its spinning the wrong direction! If you watch the direction the aircraft is spinning it contradicts basic aerodynamic theory. How is a wing that no longer exists producing lift while the one that is still attached is stalled?
2) In order to produce the same amount of lift while missing a wing his approach speed would have to be more than doubled. If you watch his landing roll is VERY short. Also in order to maintain level flight he would have to have a severe amount of rudder deflection it appears there is none (:47).
3) If a wing is ripped off in flight not only would the metal look torn and jaggered but there would be stuff coming out of the wing i.e. fuel, control cables, light wiring etc(:53). It looks like they just took off a wing the way it was designed to be taken off.
However it has been done before.