Re: its clients might stop you from ignoring calls from numbers you don't recognise
I believe the intended meaning would better be expressed as "Its clients might be able to assure you that you would like to accept their call even though you don't recognize their number". However, there's another meaning, and Google might like to implement that one. That meaning would be clearly expressed as "Its clients might be able to use this to bypass existing restrictions and get their notifications into your face more often, rewarding Google for the privilege while irritating you".