You're right, of course, but I think you can see what I'm getting at. Aikido isn't a religion. It isn't a method of acquiring supernatural power. It isn't a shortcut to nirvana or union with God. If we do not expect these things out of aikido, then there is no need to believe that aikido's founder was anything more than a man.
Except that Morihei Ueshiba specifically said that it was
some of those things.Hence the problem.
Of course, one could say that modern Aikido is different from what Morihei Ueshiba was doing, and they might have a point, but I think that most people would be loathe to admit that.