It seems to me that the problem is what intention one has when one begins learning and whether one can deal with accepting the fact that they're biased, not how they go about learning them. Though, maybe Eliezer has put various protections in that get people questioning their intention and sells them on learning with the right intention. I would agree that if it did not occur to a person to use their knowledge of biases to look for their own mistakes, learning them could be really bad, but I do not think that learning a list of biases will all by itself turn me into an argument-wielding brain-dead zombie.

If it makes you feel any better to know this, I've been seeking a checklist of errors against which I can test my ideas.