Because how else do you differentiate between Angular 2+ and Angular 1? They really should have changed the name since they are two completely different frameworks.

They did for 1.x, retroactively. That line of versions is now referred to as AngularJS by the Angular team, while the name Angular is reserved for 2.x and up.

True, but that doesn't help you google resources. I usually resort to just restricting to stuff in the last year.