Emmett Rensin is the author of that piece, and he's an incredibly talented commentator and rising star. Now that he's building some credibility, he can be a bit pickier about where he publishes.

I happened to be plugging him just yesterday on a discussion about the Obama administration on here: https://news.ycombinator.com/item?id=13791139

If you want pieces like that "Liberal Smugness" one, I strongly recommend Current Affairs magazine, and Jacobin (but Jacobin is more hit or miss). Current Affairs is pointedly against Vox.com, and has a piece explaining their opposition to it here:

https://www.currentaffairs.org/2016/11/explaining-it-all