> Note that one or two outliers do not contradict a larger trend.

The listed cases are not outliers in the scientific community. The individuals were outliers, but the scientific community, in a mode of behaviour that was not outlier-ish, shunned them. This tendency of scientists is well-established: https://en.wikipedia.org/wiki/Planck%27s_principle

At the end of the day, humans are largely egotistical, self-centred creatures, and scientists are no exception. When you say that scientists believe that progress is their raison d'etre, you may not be incorrect, but their belief in progress is grounded in a self-centred way. Perhaps the ideal is "progress for humanity", but the reality is more like "progress for my career" or "progress for my worldview", in which case results challenging everything you hold as a foundation are a threat to you, being regressive rather than progressive in matters important to one's ego. People really, really don't like being told they're wrong. Even scientists.