There has always been a struggle with UX design, people want simplicity but at the same time they want clarity and complexity of ideas. People want great knowledge, but they don't want to read about the nuances that makes it a great knowledge.
There are valid reasons for both sides of the equation, it is just difficult to find the balance to satisfied the myriad of different perspectives.
I think others have a similar issue with the differentiators you are talking about when moving out of black and white. For example, a theory seems to become a conspiracy theory if many people in a subset group comes out believing it. Or what happens when a portion of the theory is debunked, but the overall truth still follows the 'conspiracy theorists' proposition?
This is likely why people just combined theory, conspiracy theory all together, because the moment you look at the grey area, it becomes nuanced.