He might have mentioned it because the baking's masonry oven is like a smoke pit.
To be honest, im not sure but I can tell you that making bread  or baking is not different from barbecuing
I love to bake cakes. My wife married me because she loves my cakes so much. I see, did you bake with prolonged dry heat through an oven or do you use something else like putting food on hot stones? Just the oven but I would love to try stones! What is the most common thing you bake or in general gets baked? I don't bake but bread would be the most common baked food. What type of bread is the most commonly baked? I don't have the answer for that but did you know that for breads and other food like cakes and cookies, the heat goes from their surfaces to the centers? Well, I expect that was sort of obvious, no way heat can just start inside bread unless there's coal there or something lol! My cousin also tells me I can be a good barbecue master but I don't see how they're related.
Baking is related to barbecuing because the concept of the masonry oven is similar to that of a smoke pit.