I would have thought that CX ordering the A350-1000 was good news for the wider aviation community as it will force Boeing to upgrade the 777 - a programme airlines would like Boeing to announce tomorrow. It took the A320 neo to spur Boeing into producing an upgraded 737.
The A380 was two years late, the B787 three years late. Any bets on the A350? Agreed it doesn't make fleet planning easy.