It's interesting how most of the comments here are focusing on the diversity part of the article. Reading it, the thing that screamed at me the most was the influence of VC culture. It seems as though the owners of GitHub are making the decision to appease their investors by going the traditional route - fast growth with a traditional top heavy hierarchy. This always consolidates money and power at the higher levels of the hierarchy. This is great for VCs and those at the top because they can allocate more revenue and profits to them, but bad for employees and to low revenue (high volume) customers because the immediate ROI is not as good there.
This trend is fine for most companies because ultimately, the only people that matter are the ones with ownership control in the company. However, GitHub is different because of it's position in the Open Source community and with the type of people they serve - developers. If they burn the community too much, their customer base can and are fully capable of leaving the platform. The interesting thing to wonder is, have they built up a Facebook level of momentum yet? If not, the changes they are making now could ultimately turn them into an enterprise-only company and cap their potential.
