You're right about my mistake. As I understand it, Nishiyama (founder of the Kaze Arashi Ryu) was a classmate of Ueshiba under Takeda Sokaku.
As for "dead simple", I'd be remiss to refer to aiki jujitsu that way. In all honesty, I have very little first-hand experience with aikido, most of what I know I have read in books about it. From my limited understanding, however, it appears that for a number of reasons Aikido is greatly simplified Aiki jujitsu. That statement is not meant to be at all derogatory. The techniques, for example the controls, can teach one a great deal about movement, energy, and sensory perception. One way of intensifying this practice is to limit the number of variations one practices, so one can focus one's practice. For practical application, there is a happy medium between to many variations and not enough. As Ueshiba was aiming for personal development, I feel he erred on the side of too few. The other drawback I see with Aikido as training for the real world is, as we've been discussing, the absence of striking techniques. For aikido to be more "dead simple", one must know what to do and not to do with the energy of a real punch, not one with a ten-foot running start.