Flight number is not displayed within site of the common bag drop queue at LPL
That may be the case but there are huge Flight Information boards on entry to the terminal that will specify the destination by flight number. Now if the person calling passengers to come forward used a different destination name, I may have some sympathy with their cause. But really, if they do not understand the variety of names of their holiday destination, I doubt they would ever have much chance on a return flight from some holiday destination airports based on announcements.