>why the rush to rule them out?

Any fact that would lead to the conclusion that there was a deliberate campaign of organized malice by large groups of people especially in government agencies is false because the conclusion is always false. Also, obedience and compliance with government dictates is always rewarded. Any fact leading to the conclusion that that is not the case is always false.

The proper way to determine the truth is to determine first what are alway false conclusions and then rule out the facts that would lead to those conclusions regardless of the evidence.

/poe's law