That doesn't stop anyone from perceiving bias, indeed obvious bias ("of course"). It's the instant reflex that every ideologically committed user experiences, but it's in the eye of the beholder. People's own views determine how they imagine HN's bias or mods' bias—not only which polarity they perceive, but how intensely they perceive it. If you tell me what bias you perceive in HN, I can tell you what your own politics are. This is perhaps the most reliable phenomenon we see on HN.
Going by article quality rather than site quality works well for HN and has been this way for a long time. We have various penalties for various lower-quality (for HN) sites and various ways to override them.
While this is a reasonable standard when it comes to brimstoning cities, I don't think it's a sane way to moderate a forum. Send forth your angels to Quillette and I imagine they'll quickly report it's a site that advocates phrenology and can be nuked safely. Having it appear on HN is bad for HN and not principled even-handedness.
Non-racialized Quillette articles, by the way, have mostly served to endumben HN. See, for instance, "Sokal Squared" and "Mathematics Intelligencer".
(Jacobin doesn't belong here either!)