No, they 100% killed Nexus.... Pixel line is in no way, in any shape or form a successor to Nexus.
Nexus was a reasonably priced unlocked reference phone targeted to Power Users
Pixel is an iPhone Competitor targeted to Carriers to be featured as an iPhone Alternative
Completely different markets, focus and goals
>>AngularJS? They took the framework in a different direction.
Again no, Angular is TypeScript, AngularJS is Javascript, these are not the same thing, and it is far from "a different direction"