If what Lu says is correct (I'm sure it is), the instant the blade departed that aircraft would be suddenly subject to a sideways load of minus 72,000 lbs through it's main gearbox mountings, leaving the occupants at somewhat of a disadvantage.
If in flight at the time I don't think a safe landing would be an option as the main rotor gearbox would not still be attached to the airframe in its normal manner. The pilot would probably be beyond caring as he would be wondering why he was wearing the instrument panel on his nose.
