I agree with the gist of much of the article.
Although a fan of the original web, and developer of a climate web-app, I think small screens make people into consumers, while creators or investigators need a large screen, and that should be for dedicated periods of the day, not carried everywhere.
And we wish our kids had never had these things (gift from grandparents - hard to reject).
However the article title is over-simple, impractical - how would you even define what is a smartphone, in the spectrum of devices ? (maybe that's cause of downvotes ? )