Sure. But if Ueshiba Sensei is off teaching tai sabaki to the insects in Iwama while Saotome Sensei is training in Tokyo, Saotome Sensei probably isn't learning much from him. The question is not whether Ueshiba Sensei was teaching, but what and to whom.
Maybe, but it's not a question at all to me. To me the question is were they, Saotome or whoever getting on with what they were meant to be learning sufficiently instead of wondering where he was.