A lot of this is covered by something my instructor told me early on "Shut up and train".
I believe Jun quoted Ikeda Sensei, apologies if it get it wrong, "Less talk, more train".
You have entered a discussion where there are multiple layers of nuance. I would take a moment to reread the thread for a better understanding of what is really going on. You words above seem more an insult than anything. I'm sure they weren't meant that way.
For instance, if Shioda and Tomiki took about 5 years to get really good at aikido, then why is it that 40+ years of training hasn't created more like them? So, the adage of "shut up and train" can be construed to just be a mindless sheep listening and learning from teachers who have yet to attain any appreciable level (compared to the Aikido Greats). "Eat more rice", "it's a 20 year technique", etc.
One of the nuances being discussed here is the Modern Aikido vs aiki approach. Another nuance is, as George stated in his post #71, is directed towards teachers. Another is historical.
"Shut up and train" is not, IMO, very constructive in regards to this thread. I'm sure you have some very good actual content that you could post and it would be refreshing to read it.