Perhaps someone who was there on the day could tell us just how long a gap there was between the Ryanair and the aircraft which landed before and after it. They could also tell us if there were any departures in the same period.
If no other flights except this Ryanair flight moved then questions could be asked but I suspect that there might have been more than one airline operating in the same time frame.
I always noticed that when the WX radar is painting the ground that it shows mostly red!!!!
DFC