It's clear that there are also some people with an 'aviation background' who haven't fully thought through the consequences that may flow from AAIB reports/material being used for a purpose for which they were not intended.
For clarity, "GoPro" video in and of itself may be included within "AAIB report/material" as they adopt it for that purpose. But, it also remains independent "data", originating prior to AAIB involvement (meaning if a plane lands safely, the AAIB probably does not care about the existence of that video). An AAIB report, containing material would be a product of the AAIB effort, and perahps treated differently in terms of origin/ownership/rights.
I am aware of rationale that we firefighters do not video certain things, as a result of the use of video at the Asiana CFR response, which is reported to have capture a very sad event unintentionally. I've cut a path into a number of crashed cars for the police, to recover the data recorder for their use in accident reconstruction.... Every new technology is accompanied by new responsibilities for how it is handled.