I can only agree with the title of the post, not with the rest of the article.

I'm a technical guy with +10 year background but I also have interest in the rest of areas of a company. Unfortunately I lack any business skills and I'm afraid of failing in basic things if I'm starting my own business.

I don't like at all MBA's with non-technical skills like the one who wrote the post. They tend to be very arrogant and do not seem to care much about the technical aspects, which are indeed crucial for many of the companies discussed here in HN. It's for this reason that I'm pursuing an MBA myself, I think tech+business makes a good tandem. I'll let you know when I finish in two years.