First off, the OP was using an n of 1 to dismiss AOW as a concept. There's a problem with that, because in trying to draw conclusions about the value of a class
That's assuming he was addressing the value of the class. In addressing the value of the CREDENTIAL, an n of 1 is valid.
Seasickness, for example, has nothing to do with one's education.
As I read it, he said the diver vomited at the END of EACH dive. That's not typically seasickness, but rather stress during the dive, which would speak to the quality of one's training.