There is plenty of evidence from accidents and studies (decurion #15), which indicate that pilots’ risk assessments are weak, either due to lack of information about the conditions, poor knowledge about the factors in the conditions, or the application of knowledge (choice of action).
Isn't that a very good reason why, if someone writes a "limit" into a manual of some sort, they should make it very explicit what metric (mean or max gust, time-averaged or instant, actual or forecast) the limit refers to?