After listening to these and thinking a bit, there's a question I want to run past you. Would it be fair to identify all this in another way, as "the problem is permaculture for permaculture's sake"?
If so, I think that's a resounding human flaw in general.. The tendency to glorify one's niche at the expense of all others. Just look at religion (I say this as an Orthodox Christian). But, back in the world of soil.. I think it's the big reason why permaculture principles don't get a lot of traction in the ag world. Not that polyculture doesn't work (the chicken-egg of soy, corn, and wheat demand worldwide is another topic altogether), but it's easy to see people dancing in mud and ignore Mark Shepard. It's why Jack has a subset of his audience that is tired of him talking about permaculture, and another that can't get enough of it, but don't want to hear about guns. Frankly, it rears its head around these forums sometimes too.. among people who are supposed to be interested in the same thing! I think this might be what you're getting at when you talk about some declaring "It's not Permaculture enough!" when presented with a design or project.
What I'm hearing you say is we all need to take a deep breath, have a little humility, and, well, remember it's "people care", not "dogma care".