Even in the MSF simulator I have to act quickly, because of the roll and yaw. Got to get the gear up quick or it drops below Vmc.
Using MSF sim to try to understand these characteristics is probably one of the most difficult ways to get there. It has no feel. The sensations associated with a loss of thrust on one side will enable a competent pilot to initiate the corrective responses even before the loss of thrust has reached it's maximum effect on the aircraft.
I only have a few hours flying the King Air B200, but nearly all of it was doing simulated loss of thrust, and Vmca testing. The B200 is an excellently capable aircraft in this respect. It has a little known special condition for its certification, recorded in an FAA letter written to Beechcraft on October 15, 1973, which in part acknowledges that the B200 can achieve skid angles as much as 35-40 degrees while flying on one engine. The letter goes on to state that the aircraft is easily recoverable in this condition. I have done this testing, and can confirm that it is very able to be safely flown in these extreme conditions. I opine that this cannot be simulated.
I have no knowledge of the circumstances of the sad accident to which you refer, but I can state with total confidence that there are no "hidden corners" in the handling of the King Airs, or any other FAA certified type, which are not accounted for in the Flight Manual information. Just sometimes bad stuff happens.....