I've had the opposite experience recently (but not at DXB). CX came to my rescue twice to ensure that my bags got onto the right plane-- once at LAX after having been mislabeled by AA staff at the start of the trip (they seemed to be on the radio to the baggage room for a long time), and then recently at SIN, where they were able to track down my bag during a 50 minute transfer there from a Qantas flight, to the point of coming to me at the gate to assure me that they had found the bag and put it on the plane. I've had bags lost before, but in both recent cases, it seemed above and beyond the call of duty, so......