Also, like many pundits, there's a lot of "My way is THE ONE, TRUE WAY" stuff going on; which isn't a particularly good way to make friends.
They have the right idea (I have taken a number of NNG classes, over the years), but they are only one dimension, of a multi-dimensional space, and I have found it to my advantage to take a "hybrid" approach (which means that everyone is pissed at me).