I hear you, and I agree with you....but Wikipedia(I know, I know....Wikipedia ) says that Nicotiana attenuata was smoked ceremonially by the Hopi, Apache, Navajo, Paiute, and Zuni. So, it's a curiosity, and I'd like to try it.There are more than seventy species of Nicotiana. A few of them were smoked ceremonially, because they were the only species locally available. Only two specific species, N. tabacum and N. rustica were developed agriculturally (for thousands of years) because they were relatively smokable. Most of the other species of Nicotiana were not cultivated, because they taste crappy, regardless of how you cure them. Many of these have higher concentrations of truly unpleasant alkaloids.
Although there is the distant possibility that one of these lesser known species might turn out to be just wonderful, all of the seventy plus known species of Nicotiana from across the globe have been subjected to chemical analysis. So I suspect that, outside of the possible discovery of new Nicotiana species deep within the Amazon, we have a pretty good picture of the genus Nicotiana.
That doesn't actually look at all like mullein - or at least not the familiar Verbascum thapsus, or the varieties native to North America that I could find, all of which have the characteristic dense, close-set spikes of *yellow* flowers that give common or wooly mullein (V. thapsus) such English folk names as "Hag's (hedge's) taper/candle" and "Aaron's rod". Now, my training in herbalism is chiefly focused on plants that are native to, or at least that I can grow, in a relatively mild Northern European climate, so it is possible that there's a North American subspecies that differs wildly from the other Verbascum spp....Ah yes. That's mullein. There's a lot of those. The dead give away, which you can't tell from the photo, is that there's a central flower cluster. It really does look like tobacco.