With all his students, why didn't he produce equals or superiors if he did teach this in practice?
Actually, one thing I wanted to add to that, and it is not worth more than a pence, certainly not two... But I have realized during the past year that certain methodologies of teaching can REALLY only function under very direct supervision, as in, one-on-one private teaching. Without someone who can just stand there for, well, hours and literally dissect your body top to bottom from the outside and do it again and again, it is probably going to be all but impossible transmit certain ideas, not intellectually, but into the body. That is the difficulty, not in the concepts, but in the implementation.
So, maybe Morihei Ueshiba really was teaching, but his, ahem, broadcast model was simply not really taking the time with a select few to ensure that things really were being understood, not just in the squishy area inside the skull, but everywhere else in the body? Perhaps that is where he might have differed from Takeda in producing students?