That's awfully defeatist.
Why does it matter to someone who is passionate that you don't value him on your team? The end state is simple: he will not be on your team and it will not matter what you think. So what's the value of having (and writing about) this blanket opinion?
Value of writing about it? Very few of the comments on HN are valuable. People write for their own pleasure primarily, and if communication occurs that's icing on the cake. What's the "value" of you writing your rebuttal questioning the gp post's value?
TL;DR: don't really understand your question.
A multi-million dollar project that can be killed because someone doesn't want to write java interop code is something I want to support, most people mistake me for a programmer, I'm a business guy who knows how to code, what the bossman has in this situation is a win-win situation, his programmer gets to keep writing python, I get to write java interop code for a percentage of the project, and he gets a project finished.