Consider one way in which the educational environment invites flawed thinking. That is to say, most people recognize that there is something incoherent about saying that one is well educated but thinks poorly. Other than that, he is well educated. Clearly this would be absurd. Hence to believe oneself an educator is pretty much tantamount to believing oneself a critical thinker, at least in some academic domain.
Chemistry teachers take themselves to be experts in sound chemical thinking.
Math teachers take themselves to be experts in sound mathematical thinking, and so on. Yet many educators have been miseducated. Many are poor reasoners. Many confuse issues and questions, are easily diverted from the relevant to the irrelevant. Many lack a comprehensive educational philosophy.