Yes, I can see the arguments for and against categorizing an accident as skydiving related vs aviation related. However, I am of the mindset that if you're in a plane with a parachute on preparing to jump, it should be considered skydiving-related. The recent Washington state crash just made me curious, because it seems I see similar headlines a few times a year.
While I didn't compile a list of jump plane accidents, my hunch is that 20-40% of skydivers fatalities are plane related, if you include my broader definition. Thanks for you thoughts.