Re: My Experiences in Cross Training MMA with Aikido
I think the qualifier you may have somewhat overlooked is "crisp." FWIW I had the same reaction to your question about tsuki irimi nage when the striker removes his hand quickly. (The video example seemed to involve the more typical tsuki-as-thrust opening).
The technique you describe here is one I've practiced (a little), but I doubt it would be a high percentage move against a skilled striker.
Ever read the scene from "Musashi" where he plucks the fly from mid-air with chop sticks, then releases it unharmed, thereby persuading his would-be attackers to run away?
If you're that fast, as my teacher sometimes says, you probably don't need Aikido.