6. I'm questioning therefore whether "real Aikido" (as some have certainly implied or stated) only occurs when it is the Aiki they do in IS.
They're asking whether "really good Aikido" occurs without it. There's a difference between thinking of points on a continuum and points in binary opposition.
Alas, your interlocutor appears to think in absolutes. Many many times in this thread, shades of meaning are completely ignored.