Interesting Media Release. No mention of exploded aircraft oxygen cylinders or shrapnel in the aircraft cabin, only that they are examining the oxygen systems and they have retained some components and "parts of components".
Maybe there is a lot more to this chain of events than has been revealed so far. Am I the only one confused about the talk of a crew oxygen MEL, when the assumed missing bottle is from the pax supply? It seems too early to jump to the obvious conclusions.