Cancelled orders or cancelled options?
There's a big difference between cancelled orders and cancelled options. I wonder if the linked article has made a mistake?
Ryanair's 2005 order was for 70 firm + 70 options. As I recall, the options are either confirmed or cancelled on a rolling basis. In the past some options have been exercised, whilst others have been cancelled. I could be wrong, but I suspect this is what has happened here.