I'm a bit confused about the premise of the article. Does anyone assert that typing speed is a bottleneck at all? I've been in the industry for years, and have never heard that claim.
I do agree about the whole "less code is not always more", but I get confused when the author keeps bringing it back to typing speed.
Hard to say without being able to see the comments. I suspect that if that were the case, the entire post would have been removed.