I replied directly into the article, but one thing bugs me... the two demarkations for ng2+ being "Component structure" and "typescript" are both possible with React. Though I don't care much for typing, it's an option.
Beyond this, I feel the statement that React doesn't match the ecosystem of Angular disingenuous at best at this point. React works with the rest of the js/npm ecosystem, with far more third party component options today, let alone regular js modules beyond react.