The harsh language there is not being "capable of understanding a brilliant language." I'm not aware of what was meant by a brilliant language, but I have to assume that it means research languages. I would not expect fresh grads to build production worthy code in any language, but especially not in a research languages (which typically are relegated to the realm of research because they are not capable of being used by large teams for the making of good software).

I'm in the business of creating value with good software, not ivory tower building that only a smaller proportion of software artisans can build and maintain.