I'm really puzzled by that statement. I don't see Quebec as having anything particularly different from other provinces that is harmful to startups. French? Everybody in Montreal speaks English anyway, and developing i18n software is super-trivial if you do it from the start; not something that would impact startup velocity in any meaningful way.
Or was this meant the other way around? That Quebec founders are disadvantaged in the same way that black and female founders are disadvantaged in SV?