Interesting article, I agree React Native is unlikely disappear. Android and iOS have been crying out for a successful “cross platform build tool”, I think this is effectively what React Native is. The one caveat to using it, is that is still important/helpful to have a solid understanding of the underlying methods and quirks of building apps natively in Swift or Java, which also enables devs to include Swift / Java modules in their React Native build (this is the real winner for me).
A good way of speeding up the development process for apps on multiple platforms is only going to become more important if more diversity happens in the mobile OS landscape which seems at least somewhat likely. React Native seems the best build method available for those wanting to build apps for multiple platforms quickly, especially for devs coming from the web / js ecosystem.