DH

Considering the work involved, why would anyone assume that the ratio of people who get it vs. those who just do waza will be any higher going forward?[/quote]
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.
Cheers
Dan