I don't think "parochial" is the right word here -- a more accurate term for what you're describing would be "contrarian."

In any case, insofar as there exists some coherent body of insight that can be named "Less Wrong rationality," one of its main problems is that it lacks any really useful methods for separating truth from nonsense when it comes to the output of the contemporary academia and other high-status intellectual institutions. I find this rather puzzling: on the one hand, I see people here who seem seriously interested in forming a more accurate view of the world -- but at the same time, living in a society that has vast powerful, influential, and super-high-status official intellectual institutions that deal with all imaginable topics, they show little or no interest in the question of what systematic biases and perverse incentives might be influencing their output.

Now, the point of your post seems to be that LW is good because its opinion is in line with that of these high-status institutions. (Presumably thanks to the fact that both sides have accurately converged onto the truth.) But then what exactly makes LW useful or worthwhile in any way? Are the elite universities so marginalized and powerless that they need help from a blog run by amateurs to spread the word about their output? It really seems to me that if a forum like LW is to have any point at all, it can only be in identifying correct contrarian positions. Otherwise you might as well just cut out the middleman and look at the mainstream academic output directly.