You’d never hire a behaviourist? At least be honest about it

Favouring a certain intellectual perspective can also have a longterm effect on a whole field. In disciplines such as the history of science, a constructivist perspective can become extremely dominant simply because academics hired when that perspective was considered ground-breaking tend to favour candidates with a similar perspective

I'm rather puzzled by this: "One sociologist chimed in with the observation that if his colleagues knew that he endorses an evolutionary approach in understanding sociological phenomena, he could lose his job." Aren't his colleagues aware of his publications? Or is this endorsement not evident in his publications?