Michael Crichton said as much and the community turned on him.
Most relevant is that he was against consensus science, which was highlighted in the submission. Even if you are 'wrong' and in the group consensus, all is forgiven. If you are 'right' but not in the group, you are blackballed, and if you are wrong and not in the group consensus, you are crucified.
In academia it is tied to laurels and funding. The clue in the article was defender of the so-called cabal saying if it were true, it was because the NIH Alzheimers funding was too low, i.e. it was a fight for who would get what research grants. Go against the concensus and be blacklisted.