2 of the 3 aircraft I fly on use the "ring main" or bottle system so each mask in the unit has to be pulled individually to start the flow of oxygen.
Someone earlier said Boeing were behind the times (or something similar ) - all 3 Boeing aircraft I fly on have an automatic decompression announcement that plays when the masks come down so it must be an optional extra that the individual airline can choose to have fitted.
The cabin lights will also automatically turn on to bright and the seat belt signs will illuminate so you don't need to worry on night flights.
Cabin crew understand passengers are completely out of their comfort zone - if they weren't you wouldn't need us.
I appreciate it was a frightening experience, for the crew as well as the passengers, but it sounds like it was handled well and I would have thought gratitude would be a more appropriate response than criticism from Mr Hadow.