Do a deep search to find out what cigarettes' are really made of.
You will also have to keep in mind that the terms that we use in the pipe world does not carry over into the rest of the tobacco world. Farmers, for the most part do not sue the same categories that we use, and manufacturers use their own categories. I found when researching growing and curing Virginias that farmers don't grow Virginias, they grow bright leaf, and in the curing aspect of manufacturers, they flue cure and color cure. The main seeds stock is VAGold25 or some variation thereof. But, their is Ukrainian, cherry red, Canadian, etc... all in the bright leaf vein that needs to be flu cured. There's really not much of a difference between bright leafs and burleys.
Pipe tobacco tends to use the leaf below the seco area of the plant, and the reason why cigarettes are stronger is because they use mostly the leaf in the seco.
Cigarettes came about in the early 1900's from people rolling pipe tobaccos. Pipe tobacco was stronger then, most places in the US wasn't selling corporate produced tobaccos, most people just bought tobacco like a produce, twists and such at the General store. It was the invention of the French papers that are used in rolling. Flue Cured tobaccos came about in the late 1800's. But, cigarettes were not produced in packs until 1920's. There were a few companies that made them earlier, but these were a novelty than the status quo. And, even up till the 1950's most cigarettes were hand rolled from multi use tobaccos.
It wasn't till the cigarettes companies had to start regulating how much nicotine and tars were in the tobaccos that they started squeezing all juices from the tobacco for cigarettes and then reformulating the juices and then rehydrating the cellulose left behind from the juicing to control these things. But, this is in only in pre-rolled packaged cigarettes. Most RYO is not pressed and rehydrated, making it very similar to pipe tobacco, and I sometimes smoke it in my pipes. Very good, IMO.
But, cigarettes were made possible because of flu curing and French papers. If they were burley, they'd have a deeper, less sweet flavor. Try rolling a burley sometime and trying it... it's nothing like a manufactured cigarette at all.