Agreed. To me, this blog post felt like a elevated rant. There's not much meaningful analysis or substantive criticism of actual games or game design. There's some comparative insight that is worth thinking through, but in the post it's all wrapped up in rants about how one side of the comparison is bad and doesn't really hone in on the nuances of the comparisons.

Notably, the discussion of game length (a key point of this post) is thin, especially when discussing the comparison to film and music.

Everyone is entitled to their opinion, of course. Overall, for the comparative insight, it's probably worth reading for people who like to think about these things, despite the issues within.