So here is my question....is every single technique that every single student does in your dojo guaranteed to be martially effective every time they throw?
As usual, I really like Lynn's remarks. I'd like to add that different people have different proclivities: different people will internalize different techniques at different rates. That said, I think the answer is, "of course not."
"Every" is a big concept. I don't think any school of martial arts has 100% effectiveness. If effectiveness is the central issue then i suppose it's a matter of how likely those different students on average will be able to perform technique in some random situation...and that has a lot of variables.
Regarding the idea of freestyle movement exercises (assuming I'm picturing the idea correctly), i think Don said it best: some will get it, some won't. Some folks see these movements and think "that's not sparring!" and are incredulous or indignant; others simply recognize them as an exercise to be included as part of a whole system of training methods. Feeling how a connection changes has been pretty valuable to me. You don't get much time to feel through
your partner when they're tense and fighting against you. Of course a danger with training this way is that potentially a student will get too used to all the slack in the system. I think that if there is a problem with the Aikido world in general, as so many folks have so diligently asserted, I think it must have to do with the slack we allow our partners to play with.
...my two bits anyway