Someone suggested earlier in this thread it was a non-event, get over it, engines fail all the time etc. After reading the laundry list, can the same dismissive statement be made?
I am curious about the disc's departure. Was it a disc fragment that went through the wing? #2 is quite close to the body, radially the body of the plane presents a decent target, back of the envelope guess says maybe 60 degrees of arc from the #2. Thats a 1/6 chance of a body hit, or perhaps 1/3 if you consider the disc separating in two halves and angular momentum taking over.
The previous posters Q about Airbus and design. I think their design is fine, they are not in the tank business. If you see spaceage metal leaving an engine I think you are indemnified, esp as RR so it is said on this thread does their servicing.
Finally, I do believe the people on that plane were lucky. Some here dismissed that thought also.