your dribble has stopped and your post-dribble steps begin. Having a firm definition is better than relying on the "that looks like a travel" eyeball test.
And once you start to formalize a rule, I'm not sure how you define the end of the dribble in any way other than by saying the dribble ends when your hands have control of the ball, which is effectively what this rule is saying.
I think the confusion happens because, to our eyes, the dribble often ends when the ball hits the floor on the final dribble, and we start counting steps from there. But I think the current rule makes some sense, even if it still looks off.