[rdl]

This article seems like an excellent example of "understand the biases of the author to understand why he wrote what he did."

He runs a ruby on rails cram school and some kind of non-infrastructure e-commerce site. From the first, he has an obvious incentive to talk up the market for his graduating junior developers, both to increase demand for the classes and to get them jobs when they graduate.

Designer Pages doesn't look like it has any particularly unique or difficult technical challenges -- it's not Facebook scale (highly interconnected large userbase), it's not super high availability, it's not computationally intensive, etc. That's the kind of thing where a couple of senior developer+ founders plus some junior developers might be useful.