I don't think that you can say it much better.
I for one am certain that Saito sensei and the Iwama crowd are not talking about "Aiki" in the same respect as the IP/IS/ICMA crowd. I don't think the Aikikai is talking about the same thing when they say "Aiki" either. Both of those groups have a very legitimate claim the the word "Aiki".
Well, I can appreciate that viewpoint and have more or less looked into it in the past. In return, I'd ask that people look at my viewpoint:
I encountered an unusual form of strength in 1974 and (as an engineering major) I couldn't quite explain it, even though I had a number of years of Judo and Uechi Ryu Karate behind me. I later realized that my Uechi-Ryu Karate instructor had shown me a few clues one night in the mid-late 1960's, but I didn't know what he was trying to tell me at the time.
After a number of years of looking into this unusual strength after 1974, I'd researched things back into the Chinese martial arts and had gathered information that made this sort of an interesting holistic view. I later attempted to tell some of the nicer people I'd met in Aikido that "there was more to the ki stuff than is obvious".
Since then, I've met further 'nice guys' and a very great number of self-absorbed people who already know all the answers or who want me to "prove it" (as opposed to "hmmmmm... let's talk about it"). I try to show the harder-working 'nice guys' what little I know. I tend to greet the "prove it" crowd with "good attitude, but shouldn't you first just go and see, given all the Aikido literature that you're tossing aside as 'ki-tricks'?".
To cut to the chase, I spent a lot of time chasing things down and while I'm open to answering honest questions, a lot of those written questions have been answered and are archived in the AikiWeb archives. They're there to look at.
Taking the other viewpoint, there are a lot of people who already know all the answers and who can't be shown anything new or who are "already practicing that stuff" and all I can say is good luck. Some of those people are the ones posting the "you gotta tell me the answers or there's something wrong with you" people on this very thread. To them I say "good luck with that approach".
BTW... some of those people now have more than 5 years of posting the "I'm a sceptic and you must prove it to me in writing" posts. To them I must post my thanks for making my day.... you just wasted 5 years.