And what is "her way"? Did she want to be deceived? If so, what makes you think this?
However, even if she did want to be deceived, does that mean God was justified in deceiving her?
If I murdered somebody who wanted me to kill them, would my murder be justified because they wanted me to do it?
To whom much is given, much is required. Oprah knew the truth from a little child...and she despised it. Now she is surrounding with deceiving ear-ticklers...and exposing her millions of viewers with these same ear-ticklers....and it's not for lack of exposure to truth, but that she was given the truth and despised it.
To answer your second question, you are not God.
Ok, I take it your answer to the first question is, yes, she wanted to be deceived. Your justification for believing this sounds highly dubious to me. However, I will give you the benefit of the doubt and follow your line that Oprah wanted to be deceived, so God deceived her.
The next question I asked was, as you correctly noticed, intended to question God's actions. To which you replied, "you are not God." I understand that what you mean is that I am not God and therefore I cannot question God.
So why do you quote the Qur'an and then judge Allah? The Muslim could just say, "You are not God". What do you say to that?