No duplicity on the part of the author if you ask me :)
On HN maybe, but out there it is erlang ahead by more than just a noselength. Elixir is nice and promising but by no objective measure is it 'the top horse'.
Seriously, though, I don't get this critique? It's not like binary pattern matching was novel in Erlang, either. Personally, I'm just happy to see an article on binary pattern matching (in any language!) on hn.
It's just that the complete lack of mention of Erlang, the jab at OOP languages (which is ironic given the actor model is relatively OO) and presenting the reuse of an Erlang construct as an Elixir novelty reeks of magpie hype. It's like the old joke about Ruby being renamed Rails, I have a feeling Erlang is being renamed to Elixir.