That's one of those posts that should have a better, non-controversial, non-confrontational title. The title does not reflect the (great) content at all.
Hello, author here. I agree the title might be a bit controversial but in my opinion, it should reflect the fact that hackers should be doing something beyond building software. An impact a hacker has when doing the other things discussed in the article is way-way bigger.
So maybe, "Hackers don't just write software - they solve problems".