In the previous avgas drama the recalled fuel was off loaded onto the sport/racing car enthusiast, so one of them told me. After blown engines a group got together for a class action, but the lawyers told them you don't have a hope in hell aka big, big multi national, at the time the worlds biggest.
Edited to add:
https://www.casa.gov.au/file/203356/...NVBXwlewbDwqf3