i was reading this and wondering why there would be so much emphasis on stuff like apt...then realized that there are indeed developers who've only ever used OS X (and perhaps windows). i guess i assumed everyone ended up with Linux as a daily driver at some point, if even for a short time
I haven't read the page, but I would guess they're trying to highlight how a real package manager works, compared to the cool-kids toy tool Homebrew.
Given that there are Mac using developers, who somehow think Homebrew is a good tool, and then want Homebrew for Linux so they can use it there, because they have no fucking idea what a real package manager is like, I don't blame them for wanting to highlight how powerful Apt is.
I think there are a lot of us developing on Windows and/or Mac and deploying on Linux... Depending on your experience, you may not even be doing the deployments.
I happen to use all three almost daily, so less thrown by various differences, but can see how it would be very jarring to some.
