Its the same concept as what I do with some yarn balls. I will run them about 2-3" up the leader.
I was misinformed on what the guy in the videos intentions were at first. He is just a dingle berry with a camera. He should probably not mention snagging so much in the videos and it would not start such a whirl wind.
If the fish is actually biting the intended lure and getting the hook in a safer spot let it be.