Overheard from a VC friend: an entrepreneur who was pitching suggesting that his colleague would for sure understand the opportunity, since he has an undergraduate degree in the subject at hand, A few mistakes:
You lost a few niceness points there
Your score for judgement as a salesman in sales pitches just was lowered
Yes, 4 years of undergraduate education in a certain subject has value, but so has 30 years of professional and investing experience.
Even if you think the VC you are pitching does not understand the subject at hand (and you could be totally right of course), hold the feedback for yourself. Instead, make it your problem to convince him.