peacock1->Aer Lingus were using the airbridge before it went out of operation and the fact I haven't seen any charter carriers using it, along with the cones at the bottom, suggests to me that it's still out of operation rather than a case of Aer Lingus choosing not to use it.
What confused me the other day was the fact that they used the boarding procedure for the airbridge (Rows 15-29 first) rather than the one for steps front and back (first come first served) even though there were steps at either end of the aircraft.