Sorry, that was unclear. I didn't mean that I don't believe these teachers have internal skills. I totally believe the glowing testimonials here and elsewhere about these specific teachers. I would love to try training with them. What I am not buying is the assertion that everyone else is just doing either physical-based technique or mind games pretending to be aiki.
I'm also willing to admit that there are probably teachers that do one or both of these two things (technique-only training or mind games training). Contact with such teachers is probably what has led some people to argue through induction that it's true of most people other than the ones they know for sure are "for real".
As I said before, I'm a moderate. ;-)
You just don't know what you don't know. You have an idea of body mechanics, extension, timing, relaxation, etc, and you think that this is just that, but more/better. While there may be some conceptual similarities, it is significantly different in both practice and application.