No, he is a dummy.
I think the Queen will eventually see through this. Charles is not up to the job.
I think you're right. Obviously, she knows her son better than any other person. A lot of folks think it's one reason she's stayed on the throne so long.
I don't know how much control the Queen has over the succession, but Charles really needs to just pass the baton onto his son William and retire gracefully (if the moron can possibly manage it).
It seems obvious that the queen long ago decided Charles should not be king. If she had a competent successor, she would have abdicated long ago. She seems determined to remain queen until such time Charles becomes physically/mentally unfit for the job.
William will be the great king his father never could be.