I thought Ember provided: - Observable objects and enumerables - Models with a relationship framework - Controllers - A dependency injection framework - A temp

I thought Ember provided: - Observable objects and enumerables - Models with a relationship framework - Controllers - A dependency injection framework - A templating system In addition the router also provides: - Parsing of query strings in the router (React-Router does not do that) - Explicit loading states - Asynchronous routing Whereas React-Router + React provides: - A router - A view layer I also don't understand your complaint about PWAs and bundle size. Aren't PWAs supposed to fully cache all the Javascript after the first load so bundle size should be less important? And the competition to a PWA is a downloadable mobile app that's often many dozens of megabytes.