That’s exactly what he’s trying to do. He likes to poke holes at commonly accepted things in an attempt to make people think about stuff that they don’t normally think about and make them ask why more often. This is a good thing. Unfortunately, it just comes across as annoying to a lot of people.
We’re low-tech and just use a rolled-up towel on the floor. We use it to soundproof the closed door at night (otherwise the cat whining wakes us up at 430am), and curl it around the open door to keep it from swinging.