I think most reasonable people wouldn't have trouble defending a position that Elixir isn't a particularly "popular" language - at least compared to Go.
https://www.tiobe.com/tiobe-index/
It looks like Elixier ist by far less popular than the other discussed languages.
In this case though, Elixir is still way lower, at somewhere around 30th compared to Go's 14th.
[1] https://redmonk.com/sogrady/2018/08/10/language-rankings-6-1...