As serious as this engine failure appears to be, is it not the bigger issue that partial or complete control of the outboard engine also occurred as a result of the first failure? Was the control failure complete, or just the inability to shut the engine down? Did the crew have any thrust control of the outboard engine after the failure occurred?
There was a comment made earlier about the damage to the leading edge of the wing probably taking out control wiring to the engine. If all communication routes with the engine are routed through the leading edge, it appears to me that this is a design issue which would need to be addressed. Where is the redundancy?
Patrick