Everyone is entitled to an opinion, yes. But "The NTSB wanted its Airworthiness revoked" isn't an opinion, and I can't find anything to suggest that it's true. 1400 hours PIC in the Mitsi, about 800 in the KA, and I'll take the Mitsi every day of the week and twice on Sunday. Just an opinion. Here's another one: If flying a well maintained MU-2 scares you, become a gardener.
PS. Yes, the wing loading is higher than comparable aircraft, although not outrageously so. I believe it's in the neighborhood of that on a KA350. Easily the best airplane I've flown in ice, including the KA series.