I hate these clickbait-titles.
I don't find it clickbait-ey at all. The whole point of the article is that the drink is forgotten - ergo putting its name in the headline wouldn't convey any information. Clickbait would be if the article was about a drink we're all familiar with, and the title refused to tell us which one.
Let's consider two alternatives:
(a) A Forgotten Drink That Caffeinated North America for Centuries
(b) Yaupon tea: A Forgotten Drink That Caffeinated North America for Centuries
Would anybody be better off if they had chosen (b) instead of (a)? Yes, potential readers would have more information of what to expect and hence a better basis for choosing whether to click.Would anybody be worse off if they had chosen (b) instead of (a)? Yes, Atlasobscura would get fewer clicks and hence less advertising money for yet another one of their Wikipedia copy and paste jobs.
In other words, it's clickbait.