King Air vs PC-12
People I worked for purchased a King Air 200 3 years back and love it. They were adamant on a twin for safety when I suggested a PC-12. I did not get into the whole single versus twin things with them. They own the company and have managed quite well without my advice.
Assuming we are dealing with an engine failure here a single would have been "safer". Half the chance of having the failure in the first place. If you do have one at takeoff, a much better chance of a controlled return to earth. Land straight ahead and fly the plane and you very likely walk away.
The Wichita crash mentioned above, if it is the one I read about, involved a highly regarded instructor. I think that plane was just out of maintenance. Clearly EFATO is a very demanding and dangerous situation.
Sad day for all involved. I enjoy flying private but it is not without its risks.