Thats quite a limited perspective in that article. There is no discussion of the effect of road surface or rider weight or the impact of increasing tyre size. My understanding is that rolling resistance is only one factor in achieving 'maximum' speed and that maximally inflated tyres only have greater speed on very smooth surfaces. For road surfaces you need to deflate the tyre until you get to the point that the tyre is able to flex over the surface rather than bounce over it. If you are really techy about it then you should be adjusting tyre pressure for weight/surface/tyre contruction/tyre surface/weather conditions.
OK, so hopefully that's lit the blue touch paper!!!!!!