Seems like they are serial offenders with the news that the same happened at BHX.
AI had the same problem at MAN many years ago and kept their pax on the aircraft for 8+ hours after a diversion from LHR . They couldn't make their minds up what to do, offload or fuel and go and took several hours to decide. They then demanded instant handling. Sorry chaps, you're in Britain now and you have to wait in a queue for handling in a sequence which is dependent on when you requested it. There were several aircraft in front of them.
Seem to remember that this was before the era of mobile phones etc but it did hit the press next day.
We should ask why AI were the only divertees having grief today - were they not Cat 3 Rated , or just flying on fumes thanks to poor planning / pressure from management ?
Not so; US Air and AA both had flights diverted to MAN which were fuel and go