Some company's require previous Wet Season experience as a mitigation point - so it is a real hazard not a perceived hazard.
Yes, but some company has to step up and give that pilot their first wet season experience, if all required prior experience as a mitigation policy there would shortly be no one with experience, as people move on. Certainly a real hazard as the accident records show. Pairing a new pilot with an experienced for his first introduction to the wet would be one option, but for how long, and the cost associated, C210 operator would be up against it I'd assume on those counts and be shortly bankrupt.