What Aikido does for now is up to whether people really want to progress, like Ikeda Sensei did, or whether they really are more interested in the status quo.
FWIW, I don't think it's coincidence that so many of the aikido people trying to "get it" are in Ikeda Sensei's organization. When someone as senior as he is is willing to try new stuff in public, it sets a strong example for everyone else.
(Full disclosure: I'm in the ASU myself, and have personally trained with most of the people Dan listed. But, fortunately for me, I'm not senior enough for anyone to care much what I can and can't do.)