Nope. NativeScript has full support for Angular and we will continue to keep our implementation up to date with the Angular framework. However, one of the benefits of NativeScript is the freedom to choose the architecture you prefer for your applications. If you want to use Angular, great! If you want to use just JavaScript, no problem!. You can even build your app in TypeScript or Babel if you want. There's also a community-supported Vue.js integration!
We will continue to provide architectural freedom to the NativeScript community. If you want more detail on the pros and cons of each approach, read this chat between our developer relations team and a few of our NativeScript community Experts.