Correct me if I'm wrong as I've not been following these threads for a while, but the Globe & Mail article implies 4 MGB oil loss cases. I only recall 3, Broome Australia and Cougar 491 were due to filter housing titanium stud failures, and the Shell Brunei was an over-filled MGB lube oil reservoir causing seal failure.
The Norsk incident was MGB oil pressure drop due to vespel spline failure. I don't recall lube oil leaking in that case.
I still don't agree with the S92 FAR29 compliance, but I'm sure the manufacturer's lawyers will win their case regardless.