Content is certainly important but this article totally overstates the case for it. It reminds me of the days when websites consisted mainly of static brochureware. It also depends a lot on what the purpose of your website is.
In travel I would rate functionality much more important for success. Fast downloads, overall ease of use, interaction design in short is key. Of course, content is necessary but in the world of Web 2.0 this is increasingly user generated and doesn’t come from the site owner.
The brand is who you are and that is defined by many more factors than just content. In short, you’ve got to deliver the whole package to be successful.