GAW,
No.
Just proved that your theses, all of them. are utter bunk.
The reason why there are higher pass rates is because there is a high barrier to the field. And that barrier long precedes the point of examination.
Perhaps find a whole ‘nother list of qualifiers to your theses. Because all that does is, and which in fact did happen, render the theses foolish and meaningless.
Which you have just very ably proven.