While that may be true some hand picked examples, because they are so obviously methodologically flawed that they betray either a lack of basic skills in a field or dishonesty, can completely destroy credibility.

When a documentary tried to explain to me that it was so unsettling that ancient Egyptians were able to build the pyramids with heavy granite blocks that came from 900km away without even mentioning the Nile, I did not think it was worth continuing much further.

(Turns out only a little part was made of granite anyways, most of it was built with stone coming from right next the pyramid)