Junior as in non-expert in the field. Using simplistic languages means optimizing for quickly pumping out code (at the expense of maintainability in the case of golang, as I've personally experienced at an employer that has one of the largest golang setups on the planet). Not to mention that golang comes with its own set of gotcha's and idiosyncrasies that need to be understood, especially in more involved programs.

There's a good middle ground that can and has been achieved by other languages.