Comment Preconceived Notions (Score 1) 600
Just like anything, people will consign to obvlivion anything that doesn't fit to their preconceived notions or the general dogma of the day.
Just look how any science that deals with racial differences (IQ, etc) is handled in the scientific community itself, or how Stephen Jay Gould was able to make a career out of political correctness on accusing past scientists of bias with brain sizes... while being completely off the mark himself.
Various stuff like that happens all the time in every era. Humans remain human.