Elixir has tradeoffs that many languages refuse to do, like green-threads (from Erlang), that enables you to do many cool things with the concurrency / parallelism / distributed computing bits (and there is a whole ecosystem around these tradeoffs).
But the selling point of Elixir for me is the quality of life for the dev, the docs and tooling are amazing, the community is very focused, the language itself is easy to read and extend (with the powerful macro system) and the pattern match system, is one of those things I wish every language had.
elixir's strength is really the dev experience, agreed. i think if the community had leaned harder into that aspect and less on the 'whole new paradigm' aspect of the language it would have been more successful. people want to do the same thing they are doing now but in a more pleasant way. very few people want a revolution
But the selling point of Elixir for me is the quality of life for the dev, the docs and tooling are amazing, the community is very focused, the language itself is easy to read and extend (with the powerful macro system) and the pattern match system, is one of those things I wish every language had.