Coming into Elixir from mostly doing Python but having it strongly recommended by a Rubyist I was a bit surprised to find myself in the middle of an implicit ex-Ruby world. It has been fine. But in contrast to the article, Elixir has always been about Erlang/OTP for me. I've never cared much about Ruby/Rails because it felt equivalent to the Python/Django which I already know.
I would say that in my experience everything outside of Phoenix is more explicit than python. There's a lot of hidden implicitness in python that drives me up the wall when I'm trying to chase a bug in someone else's code; I rarely have that problem in Elixir (even with phoenix, usually chasing where the code comes from is not terribly hard).
Haha, I was referring to feeling the implicitness of "everyone came from Ruby" which I didn't, rather than anything in the language. Sorry if I was unclear :)