Rather complete synopsis of findings so far from FlightGlobal.
I view it as rather poor and misleading and not worthy of actioning.
There are going to be some new lessons learned in this latest event and the investigation to discover them is just beginning.
I don't view 7-8 inch long rim pieces as high energy relative to the stuff they have to get through to hole a wing or pressure vessel. Ignition at the engine metal case is a given in this type event so the persistence of the fuel must be addressed as well as the rotor failure itself.