> It can't even be 1% of websites out there embracing this stuff.

This is all good but it's also a chicken and egg problem.

The lack of web push notifications for one of the two major mobile platforms will prevent that feature from being used + any adjacent features that would be used in more viable web apps.

In my opinion, nearly all good-guy arguments for Apple in this debate are negated by them not implementing that single feature. It is not new, obviously useful, obviously not a privacy concern and obviously blocked because it might impact their app store revenue.