Here, he points out
that the state of your intent in your core/body is the key to doing another similar type of kuzushi effect, against even more resistant ukes. He explicitly points out that fighting against their strength is different (and less effective) than using this intent-based trick. ("Right place" is the visualization here, rather than playing catch.)
Ikeda is using a significantly different direction and body movement when he "succeeds" versus when he "fails."
Would he be able to use intent to go against their strength and be as effective? If yes, why don't we see him doing that?