I think the real problem is overly broad generalizations about languages in general. I'm just a sysadmin, so I have to keep up with the big picture overview of things, and one thing I have learned is that certain languages have momentum in certain areas of application where they don't in others. The devs in one area see language A as awesome and language B as sucky for their work, while the devs in another see it the opposite. Elixir/Erlang for example has concurrency that is only challenged by a small set of languages like Go. (Henning Diedrich got 877k TPS with Erlang and VoltDB. )

Anyway, my point is that for those of us more specialized and deep instead of jacks of all trades, we need to keep in mind our biases when we speak so broadly about languages. Also, when it comes to momentum, some languages can pull others behind them. For example, I am recently fascinated with Racket, which seems to me a perfect way of pulling Scheme (SICP) into a modern setting. Elixir may have enough momentum that it brings Erlang with it, etc.