High speed snap rolls in something like a decathlon will result in a compression fracture of the leading edge near the wing root. You can attempt to pass it off as hangar rash but nobody will believe you.
I really don't believe any of that. First of all, the leading edge of something like a Decathlon is Al sheet which does not suffer compression fractures. The old wooden spars (front and rear) certainly do suffer from compression cracks and when the AD was issued:
Comment Issue No. 2 states 'the FAA has determined that wing damage incidents are the major cause of compression cracks and other spar damage in low horsepower and lightweight airplanes.. therefore a one-time inspection is acceptable...' but give no indication of in-flight causes in any of the affected fleet, nor a rationale for the differentiation.
Nil evidence of in-flight loadings causing compression fractures but plenty of evidence that in-flight loadings can cause other wing damage. Even the newer airplanes with metal spars suffer damage as a result of snap rolls which is why few owners permit them.