I think that it's not about teleporting. It's more about intending to teleport. If you intend to 'move' somewhere, you often do funny things like leading with your head and leaving your feet behind or leading with your feet and leaving your head behind. Something in your brain tells you it can't all move at once. On the other hand, if you just intend to 'be' there, and imagine youreslf just there, the motor system seems to produce a much more efficient movement.
Like I said, I didn't have much faith either, but I found the results very interesting. I don't think I teleported, but I did improve my technique quite a bit.
I like what you say about multiple attackers, Mike. I've heard it before, but never realy tried to internalize it. It seems worth trying.