Just before Christmas I had to meet a friend who was arriving into LPL on an easyJet flight from Spain, scheduled to arrive at 1600. She called me during the early afternoon to say that when she checked in they advised her of a minimum 2 hour delay. At 1800, easyJet's website still showed the flight as arriving at 1600, but Liverpool airport's website showed it as arriving at 0040. At 2200, easyJet still showed it as arriving at 1600.
If they're not going to update it, then it would be better not to have it at all. The stations should in theory get the messages from the MVT messages and thus all have the same information.
I sent easyJet screenshots of the displays, a request for information, and a bill for the night we were forced to spend at the Marriott at Liverpool Airport and have not had a reply.