As for O-Sensei's mystical vein, remember that the man evolved. He himself talked about re-envisioning Aikido in the wake of Japan's defeat in the war--and not just Japan's defeat, but in consideration of Japan's role and actions in that war. When you quote him, you have to think about when the quote came from. I'm sure he did mean exactly that Takeda Sokaku opened his eyes to "true budo." I'm also sure his idea of "true budo" expanded over time.
That is a very good point.