In this situation you flatly contradicted the speakers and painted yourself as a lot smarter than them.

That's risky from a social perspective.


I bet it would be worth figuring out when they let you in, and when they don't.

I bet it isn't "hit or miss".


Yes exactly!


I think that the reactions you are describing are predictable. If you just flatly contradict what others are saying, you are likely to get a negative reaction from them. If you present yourself as a lot smarter than they are, you are likely to get a negative reaction from them.