OK, I've been reading the comments here and so many are just speculation and grasping at straws.
I'm not a King Air expert by any means, but, I have flown a 200 for a couple of years about 8 years ago.
All the King Airs are great planes and they're a great IFR platform, solid and stable in flight. That's why they made hundreds of them and most are still flying around. Sit in one sometime and you'll get that feeling just by sitting there in the pilots seat.
The 200 has auto feathering and rudder boost in the event of an engine failure. It doesn't do all the pilots inputs for you, but it helps a lot. Of course they have to armed before flight or they won't do you any good at all. Still, with both, you have to be alert and on top of things with the correct inputs if an engine fails at TO. Even if auto feather wasn't armed, you can still manually feather the engine with the engine controls. This plane will climb under the conditions at ICT yesterday. Looking at the video, obviously it was good VFR with a breeze out of the NW. Assuming it was somewhat cooler than summer, lets say about 70 degrees, but maybe less, and he was under the gross weight of 12500# even with full fuel. By my calculations from my Flight Safety performance charts, and at gross, he should be able to climb at 700 FPM, or a climb gradient of 5.5%, assuming 0 flaps on TO,... single engine of course.
All that assumes of course you fly as trained in the climb profile, flaps up, gear up, prop feathered and Vyse of 121 at gross. If you can't fly the profile as trained then all that go's out the window.
That being said, I say again, this plane will fly under those conditions that I think were there at the time of the crash.
In my training we did multiple engine failures at rotation and climbed out and came around for an instrument approach and a single engine landing, sometimes a single engine go around was done too. This plane will do both!
As for the cause of the crash, none of us were there in the cockpit and none of us here can guess why the pilot wasn't able to deal with an engine out situation, assuming that was the only problem. They will look into the pilots training and history, was he current, was he competent, obviously maintenance will be looked at closely too.
I know it's human nature to be curious, so am I, but to wildly speculate with opinions that are sometimes are way out there, like engine failure and then a heart attack seconds later is almost beyond the chance of probability.
I don't want to dump on a dead pilot that's not able to defend himself, but I would be looking in 2 areas, one of them being maintenance, as the NTSB and FAA will obviously be doing.
By the way, it looks like from the photos that the plane hit in the corner of the sim bay which sounds like it collapsed part of the building on the sims. There is fire suppression in there as all of the Flight Safety buildings have because of all the hydraulics involved.
Also, there is an FAA building just next door on the north side of Flight Safety.
I've done Citation training there a few times and know the building and area somewhat well.