And, all other things held equal, the one who works harder will have an edge.
And you'll never find out if you have the aptitude until you put in the work to find out...
But exactly how many angels can dance on the head of a pin? Pointless quibbling about illusory constructs.
As an art, it seems the more pressing debate is can it be proved, not asserted, what Morihei Ueshiba was doing, what was essential and what was superfluous, and how do we replicate that essential ability in ourselves and future students in a reliable way. Make the path clear, and people will follow it. Right now, it is anything but clear, despite the rhetoric. So it is pointless to worry about the character of the students who might be following a method that has yet to be discerned in its totality.