The only quibble I have with Markdown is that it shows its web-oriented origins by making it difficult to insert page breaks. That's largely the reason I still use LaTeX for a lot of things. Other than that, though, I fully agree with the author. Plain text is great because 1) it'll always be readable and 2) it forces you to focus on the writing first and the formatting second.
> The only quibble I have with Markdown is that it shows its web-oriented origins by making it difficult to insert page breaks.
I'm not sure it's got to do with web-orientation, reStructuredText has targetted a number of builders from the start, yet does not have a native pagebreak directive (you either need to use an extension, or use raw passthrough to the latex builder)