> Ouch, yet another way in which running on Windows can lead to poor technical decisions.
I didn't see any indication in the parent comment (or in general, really) that Windows support was the cause of Mercurial's difficulty in implementing those features.
He means that Mozilla devs running Windows led them to adopt Mercurial (which was, in his opinion, a "poor technical decision"). Not that Mercurial made poor technical decisions as a result of supporting Windows.
I didn't see any indication in the parent comment (or in general, really) that Windows support was the cause of Mercurial's difficulty in implementing those features.