Sort of, but better tiering of notifications really should just be part of the phone OS.
it is. Inherently though you can only get a simple sense of a notification happening in your pocket. Allowing more trusted notifications only on the watch means some that you may way to look at later but don't care about now, can be ignored. With just the phone they otherwise all get mixed up (unless you have sound on all the time which I find too annoying to those around me to do).
Meh, when my phone rings in my pocket and I know I don't want to answer it without even looking
How do you KNOW that? There are plenty of times when I may want to take a call if it's important.
I can easily click the side button to ignore it, through my pocket
I do that too but it's not AS EASY. Again it's the layering you are missing here.
Android is a single platform but not a single manufacturer ...That relies heavily on services from a single manufacturer, and it fairly useless without. Android Wear is every bit as pigeon-holed, in fact moreso since there are already far more Apple Watch apps to gain non-Apple functionality.