What does this actually mean? They are both programming languages made for solving general problems, what makes the comparison inappropriate? I've used both and pretty much all of their cousins, so I'm confused why you would think they aren't comparable.

The "test" itself I agree is a bit shortsighted. I think Go might be a fine choice over time anyway, but the experiment itself doesn't necessarily highlight the things I'd want to highlight for medium- to long-term viability.