There is also no division when you look at Ueshiba.-although I believe you have the order confused. You stated:
In any event, You suggest that the non-specificity of the word "aiki"
Just to be clear, I didn't state anything (except the explanation of "kisetsu" and the reference to Yagyu Shinkage-ryu). Everything above the dashes is a translation of Professor Goldsbury's quote of Shishida Fumiaki.
I will state, in as much as Yagyu Shinkage-ryu goes, that the definition of aiki as "kisetsu ga au" is an overall tactical/strategic concept, unrelated to body skills. The particular reference in YSR is to "departing from aiki", and refers to part of a kata where the swordtips aren't even touching, or barely touching. I tried to make this distinction clear in my translation and explanation, but I can see how it could still be confusing. Indeed, IMO the basic sense of this definition of "aiki" probably led to its later use in a more hands-on/weapons-on sense.
Funny,, here we are in the 21st century and recently a Shihan in a koryu went on record that the inner teaching of his were now going to be "reserved for the Japanese."
Who was this?