Nice bit of humour from Noproblem there. Almost the same thing nearly happened to me last year as I awaited boarding a flight to Almeria. The Ryanair boarding staff arrived; everybody rose and immediately crowded the departure area. We were advised "Priority Only - Everybody Else Sit Down, we'll call you." Lep being a Ryanair cheapskate obeyed the order along with some more. I resumed my reading awaiting the call. There was no call and suddenly I noticed "Riga" written up where "Almeria" was. Fortunately, the plane was still there and I made my flight having said a few choice words to the Ryanair attendant.
Lesson Learned:- Stay vigilant, don't sit down and don't trust anybody in Ryanair.