I'd have expected no less, since Chrome already protects the notification noise by default, too. You have to opt in to notifications. Sounds like a slightly different implementation for iOS, which is interesting in that they're assuming any app you add to Home Screen means your opting in to the notifications, or is there another opt-in? I see myself putting a few apps on my home screen that I want to click on often, but maybe not wanting the notifications to go with it?