Please do not get confused with Perdurabo's accident and Big Doug's incident.
As I understand it, the tyre was not an issue with Perds - it was mud on the road.
Big Doug had a burst rear tyre after fitting an Avon Cobra, but managed to bring the bike to a controlled stop with no injuries.
Whilst it is not a good situation to have been in, I think all credit has to go to Avon for diagnosing the problem quickly, making an immediate offer to Doug for reimbursement of all costs and an immediate recall on the affected batch.