Do any amount of stat blocks override the general rule that Fax cited?
The rule Fax cited is for Monsters As Characters, so by default it only applies to hit dice gained after the monster manual entry. In any case, this guide isn't precisely RAW so much as it is about reverse-engineering the way WotC handles monster statblocks and demonstrating that they obey the rules. Introducing rules that aren't obeyed would be counterproductive and lead to ambiguities, especially since Fax's "look at the highest score" rule certainly isn't written anywhere.
Lord Raziere herd I like Blasphemy, so Urpriest Exalted as a Malefactor