It's funny how almost all the comments are about technical aspects of the presentation or how he said it, and not what he said. He's right, FWIW. How many times have I had to yell "Hel-LO!" at some bozo staring at his phone & not watching where he's walking? However, how would you regulate this? If you created a metric of "attention-sucking" and set a legal limit on it, the web giants would immediately game it.
Assuming it's possible to fix this through government action, it'd probably be by enforcing education that teaches values and mindful decision-making. Right now I think what we get is a collective mindset of enduring education, enduring the workday, and then distracting ourselves into oblivion. The things that suck our attention are the best pastimes because we can do them morning to night and never stop to deal with how sucky life and being self-aware are!
I don't think you can regulate how engagement is turned into dollars. But that engagement is addictive, and we are weak to it. So can it really be solved?