I would suggest that the professor wasted your time. Don't give it a second thought. She obviously isn't a specialist in gifted issues, otherwise she would have a more nuanced understanding of the topic and would have seen the shades of gray as they exist. Or, if she is, she displayed sloppy thinking and a weak knowledge base.

It is frustrating that someone who ought to know better didn't, and acted like a total boor.

What is to give light must endure burning.