Not really a JS developer, but from my recollection, everything you said is essentially correct. I was on the periphery of the Ember community when React droppe

Not really a JS developer, but from my recollection, everything you said is essentially correct. I was on the periphery of the Ember community when React dropped. I remember a blog post or something where the Ember developers basically acknowledged that React's virtual DOM approach was significantly more performant than what Ember was doing and, to the Ember community's credit, resolved to re-architect their view rendering layer to shrink the performance gap.