Definitely agree. I wouldn't even call the angular thing a transition, since it basically threw everything out. It should've really been called something else.

There's also big examples like Perl 6 and Python 3.

IMO, you can make breaking changes as long as it's done gradually and you provide a clear migration path. After experiencing React's strategy [0] for a few years, I'd say it's become my gold standard for how breaking changes should be made.

[0] https://reactjs.org/docs/design-principles.html#stability