I forgot to mention the related concept of body positioning by which Uke is unbalanced from the attack when Nage moves at the last moment to a place that is not what Uke expected. I assume this is also considered a non Aikido non Aiki trick?
I don't care what you call it, but there's a lot more to it than body positioning. This is one of those aikido moves that often doesn't work with ukes from other arts (or, often, other dojos). You can get completely different results if uke is really trying to hit you.