He mentions it at the end, but I'd strongly agree that Clojure addresses the issues he mentions. I see a lot of discussion in this thread about Elixir and Phoenix, but I'd take another look at Clojure.
It's got a strong, friendly ecosystem that encourages small, composable libraries. For every level of your application, there's competition - http servers, sql abstractions, front end libraries. And there's great resources to help you choose what works best for your use case - the Luminus docs, books, blogs, and several active forums for discussion with library owners and just regular developers.
Couple that with a community that really took Rich Hickey's "Simple made easy" talk to heart and the default immutability and functional paradigm and the abstractions that Clojure itself has to offer, not to mention the performance the JVM brings to the table, and I think it's a great language to hang your hat on in the long haul.