Yes and no. A larger community will for sure help with filling in knowledge gaps, but those gaps stem from the documentation not covering something in enough detail.
Maybe it's just me but whenever I read Elixir, Phoenix or Ecto's docs I can't really relate to them. It feels like they are written for a completely different type of person and very rarely do they focus on practical applications of something. Most of the docs feel more like a reference guide to a library's API and if you're lucky you'll get an example or 2, but there's not enough context written around it to figure out how to apply that to your specific problem. That and the docs are rarely linked to a meaningful result when Googling for stuff.
It's a much different world than Python, Ruby and PHP IMO.