Interesting. Looks like in Inkscape he uses the OS's font-rendering engine to render the text in the chosen font, then converts the rendered font to an SVG path.

So the benefit appears to be text that is guaranteed to fit a particular pixel-width (minus any anti-aliasing discrepancies among browsers). The cost would be baking one particular OS's font-rendering idiosyncrasies into the SVG-path page titles, but that's partially hidden by the choice of thick bold-faced fonts that hide hinting discrepancies (plus using all caps).

Makes me wonder if one could infer which OS he used to generate the SVG title by converting the text to a path on each platform where Inkscape runs, then comparing each to his SVG title.