Answer: -
Pseudosciences are generally driven by ideological, cultural, or commercial motives.
Any observation or data that are not consistent with the established beliefs of the pseudoscience tend to be ignored or actively suppressed by the pseudo scientists.
In the pseudosciences, any new evidence contrary to it's accepted dogma is often considered a hostile act and leads to bitter disputes with the proponents even scoffing at these evidences.
Thus the behavior of the industrial chemists who developed CFCs can be categorized as pseudoscience.