Well, they are supposed to, but it happens rather regularly that ten minutes of googling gives me treatment ideas that none of the doctors I know have heard about and they are proper clinically tested ones.

Yeah, I've seen a handful of cases like this as well. It'd be interested to hear from some sort of insider what the truth is. I suspect that you're right and that they are biased towards what they learned and are biased against what the new research says.