There is a possibility that this is a public "boating accident." To attempt this would be logical, all you have to do is move some, coinjoin some, "show other signs of a hack" and there ya go.

Or not. Luke, although brilliant, I'm sure has developed blind spots due to his talent, thought of his server as secure, where keys to those coins probably have lived since they were worth a fraction of their current value. I'm not sure he has anyone in his life that he would trust with letting critique his system, and he doesn't seem like the kind of guy to accept the criticism. Peter pointed out the irony of how many plebs have a more secure system than this Core dev.