Not true, I still get recruiting emails every week asking for angular experience, which means there is probably a huge group of people locked into the angular framework, and since 2.0 will be backwards compatible, I'm sure a decent amount of people will be switching their angular 1.0 apps to 2.0. It will be easier then converting a whole angular stack to React and figuring out all of the other React libraries and frameworks you need to use.

Learning all of the libraries and frameworks for React is quite complex and not less complex then learning Angular 2.0. with its backwards compatible support.