The main reason is probably because Elixir USP is the stability of the apps written in it and how easy it is to build distributable software with it imo. You ha

The main reason is probably because Elixir USP is the stability of the apps written in it and how easy it is to build distributable software with it imo. You have to be an experienced engineer in order to appreciate those two things and have specific problems which most don't have. However I think with Phoenix Liveview Elixir gives regular developers a productivity boost that could be it's own USP. I have only written a small elixir app but I was mind blown over Liveview and still is convinced that most people would be better of using it over a SPA.