That is a "mainmount" or a "piniacle" landing
Basicly the pilot is still hovering, but has touched the aft wheels on that roof top.
Engine failure in a tandam rotor helo isn't a big problem, both engines drive the transmitons which turn the rotors. Therefore you just lose power, but not controll.
Same deal on the V-22.
Failure of a tranny, however is a whole nother story.
In the CH-46 the foward tranny had a shear point so that in theory the blades could continue spinning if the gearbox froze. A failure of the aft tranny would be catastrophic and isn't recoverable.