I remember coming across this article some months ago, and reading a little more into it. The language used in a lot of writing around this "movement" makes it sound like we're in a constant state of panic thanks to all our notifications. Nothing wrong with trying to get the point across, but it feels a little extreme to me.
The main takeaway (and it's a worthy one) is to respect your users and their time. Your app may be the most important thing in the world to you, but that doesn't mean that everyone using it wants to be instantly notified of every little event within it. Unless your app is responsible for mission-critical or time-sensitive stuff (messaging, etc), chances are your users don't need more than a weekly (or maybe daily) summary - and if they'd like to be notified via push, then make it an option that's off by default.
The main takeaway (and it's a worthy one) is to respect your users and their time. Your app may be the most important thing in the world to you, but that doesn't mean that everyone using it wants to be instantly notified of every little event within it. Unless your app is responsible for mission-critical or time-sensitive stuff (messaging, etc), chances are your users don't need more than a weekly (or maybe daily) summary - and if they'd like to be notified via push, then make it an option that's off by default.