Because it implies of knowing the truth as a matter of expertise, which is just arrogance even for experts. Expertise is about knowledge, not truth. There was

Because it implies of knowing the truth as a matter of expertise, which is just arrogance even for experts. Expertise is about knowledge, not truth. There was also experts on lobotomy who won Nobel Prices. All of whom were assumed to be truthful and knowledgeable and yet was disinformation in its own right.