I see no reason why one would want tobacco flavored food...
The olfactory areas of the brain are closely tied to emotional response. [The aroma of brewing coffee. Biscuits baking in the oven. Meat on the grill.] Nearly every commercial pipe tobacco and cigarette brand adds subtle (or not so subtle) food flavoring to the product. Candles and car deodorants are often food flavored. Kitty litter often contains anise.
If the food flavoring is subtle enough, it tweaks an emotion, without triggering recognition of the food flavor. We often use (sometimes absurd) food references to describe even pure tobacco flavors and aromas: creamy, chocolate, fig, prune, fruity. Our limited vocabulary of true tobacco characteristics draws us into food allusions.
In our civilized world, we add food flavor to drinking water, coffee, room "fresheners," shampoo and soap. It's all an olfactory marketing game--a game of subliminal emotion.
All that having been said, I find the limitless variety of natural tobacco flavors and aromas fun, and a joyous process of experimentation.
Bob