Frankly, I have never seen such ridiculous things. Having taught students have claimed similar things about professors and seen the exact opposite, I am hesitan

Frankly, I have never seen such ridiculous things. Having taught students have claimed similar things about professors and seen the exact opposite, I am hesitant to believe you. I have never in my life seen a professor unwilling to explain a grade or give helpful feedback, especially on an essay. It sounds like you had a professor committing malpractice on the verge of being fired.