Dave King is a character. He's a convicted tax evader, his assets were frozen during his tax trial, he falls out with his friends over money, including Gary Player, and the UK take-over panel cold-shouldered him for four years. While he is cold-shouldered Dave King can't participate in buying any UK company.
Douglas Park has no baggage like this connected to him. We'll never get to hear his version of events directly from him, but if we did I strongly suspect Dave King wouldn't be left in a good light.
You have to ask yourself what did King do to piss off Douglas Park? And why is Douglas Park so disdainful of King today? King claims he didn't threaten to put Rangers into administration, and he didn't leave a huge burden of uncovered costs to remaining directors when he stepped down. Do you believe him? I don't.