The problem David, if you read above, I'm not sincerely interested. I don't think there is anything of interest. I'm mostly just annoyed. I would go to a Dan Harden seminar, if Dan would let me come.
So you're here just trying to intellectually disprove what everyone tells you must be directly experienced?
Pointless and a waste of everyone's time.
Sincerity in anything is sincerity in everything.
If you sincerely believe that your aikido is worth anything, you'll be compelled to go and prove it against these annoying pretenders.
You can say you have nothing to prove, but if that were true, you wouldn't be here trying to prove intellectually what can only be known by direct experience.
Dan's fine and Dan's great, but he's not the end-all, be-all of IP/IS. It's an ancient field that few care enough about to go deeply into. That's always been true.
But if you sincerely want to plumb the depths of aiki, you need to stop talking about it and go and see the real thing.