We don't know why they aren't doing arrival photos, there could be many reasons beyond personal choice, they certainly didn't mind doing them on both of the other tours they've done.
Unfortunately I suspect there will be a lot of whining in the press until we see Archie (since he'll get the most clicks etc).
Unfortunately I suspect there will be a lot of whining in the press until we see Archie (since he'll get the most clicks etc).