Ya know, those things that have the word stupid right in the name, that have been proven time and time again to oversimplify and exclude information.
You mean that's happened two times? I only know of one time. What's the other one?
Natural Allies and Barbarians clearly operate on different mechanics in proven ways
People often say that, but it looks to me like they really might operate on the same mechanics. Jillian is hardly typical of barbarians and if she were a regular barbarian (who wouldn't have a purse) then the common mechanics between barbarians and hobgobwins would be more obvious. If you know of some real proof somewhere that everyone seems to see except me, then please point me to it.
The only thing that puts them in the same group is an information source known for inaccuracies
You're right that the only hard evidence comes from a source that is sometimes inaccurate, but since that Stupidmeal suggested the idea we can see that barbarians being Natural Allies makes a lot of sense. Barbarians and gobwins both pop in the wild and live in the wild, and they both take shmuckers from capital sides to survive. If barbarians can use shmuckers to pop more barbarians then gobwins and barbarians are so similar that there could be no doubting the Stupidmeal. No one knows whether barbarians can use Natural Moneymancy or not, so it's not a perfect theory, but where there is doubt I've got to go with the Stupidmeal. It said that flying units can't be attacked from the ground in dense forest, and it was right in the majority of cases. The odds of a thing being true are greatly improved by being in a Stupidmeal.