Regaining control of your attention
Regaining control of your attention doesn't mean not using your phone. It means being self-aware. The author is relying on a crutch. Not using the phone is just removing a single source of distraction, it does nothing to actually help attention regulation. It's like saying, I fixed my impulse issues by never walking in to gas stations, so now I don't have to worry about buying lottery tickets! You didn't fix your impulse issues, they're still 100% there.