This is a curious analysis of Hamlet’s character. Especially by a man who sees him as an enemy. I mean, he is generous and he DOES fail to peruse the foils. But he is absolutely NOT free from all contriving. And surely Claudius knows this. Hamlet contrived to have the story of the murder of his father in front of the murderer. He contrived to escape a ship taking him to his death and not be spotted upon his return.
It is an extraordinary and interesting contradiction.