They shouldn't have to physically send one to check if DUB is A380 capable surely?!?!?
The paperwork might say it's capable but their insurer and / or lessor will demand a non-rev demonstration, particularly for an airport that hasn't handled the type
Can you imagine the issues if the first pax flight to land clipped its wingtip on a pole...? Oh my, the whiplash clams alone would bankrupt even Emirates!