It's a fairly strange list mostly because it seems the guy doesn't do a lot of programming. The whole 'only focus on one thing' is pretty well known for writing, which is why the vairous writeroom clones exist.
I've always felt that vim was pretty awkward when working with text instead of code because it doesn't reflow the text when you delete so you hit a `D` and then have to `gqgq` to get the text back into a paragraph.
"Writing with vi is as close as you will ever come to writing in your own handwriting and still working on a computer."
Your thoughts?