Many times, people do not care about the rigour of the reasoning process—the most important thing is whether the result is correct.
For example, when Cao Cao was preparing for the Battle of Guandu, his strategist Guo Jia presented the "Ten Victories and Ten Defeats" theory. At first glance, each point seemed to make sense, but there was not half a point of verification of their truth.
However, Cao Cao needed such statements to boost morale, and the generals also needed to inspire confidence; thus, they chose not to question them.
Similarly, Wei Dongliu's analyses throughout are all "in my view," actually lacking sufficient supporting arguments.
But since everyone originally had no clue, now that the Alliance Hierarch has an idea, it wouldn't hurt to try.
