So, if you look, the guy's smart ... he's written plenty of papers, and as a consummate professional - in ad/marketing =) ...
His wife's Jamaican, and the stuff is based on a Peruvian way of cooking ...
Here's the thing ... You can probably hack ribs at 300-400F (grilling over ashed over coals, like normal grilling), and get them to pull off the bone, and possibly even still be juicy for blocking evaporation and using enzymes, but you won't have Q ...
You'll have ribs, but you won't have developed ANY of that sweet, Q aromatic that low and slow has ...
So yeah, you can cook ribs ... but you haven't made BBQ IMHO ...
But hey - the Q's in the BBQ sauce bottle, just squirt it on those one-hour ribs and spend the other 5 hours drinking beer!