Because there are better ways to train than trying to get it through Kata and forms; ways that are faster, and better for targetting what you are looking for. Additionally there are ways to move, that while not trained in any modern Aikido I have ever seen or felt-never the less fit seemlessly within and bring it to another level- more in keeping with the founder.
IOW, contrary to the internet slams about there not being any shortcuts.. actually there are. I have met some pretty sharp people in these arts. They get it...and they are chasing it.
I don't disagree at all and even mentioned that in my reply to Mark. That's one of the great benefits to us people who are just coming on board from the work Sigman, Ark and yourself (and others) have already put in. We get a nice jump on the learning curve and get to skip over a lot of the fluff.