Out of touch
Obviously, the person who thought up this latest gem either:
-A. The biggest plane they flew was a 320 where grouping 5 crew was practical
-B Flew in the military where they are skilled at getting a squadron through a parade.
-C Has never flown an airplane and resides at Costa from 7-3 (except Thursdays.
Getting 30 people to march in unison is neither practical nor efficient. Many of the airports that we walk through are too small for such a parade. Many have curves and bends that don't allow the passengers to view the spectacle in full.
They're struggling to fill the weekly emails with something significant, so they have to make this stuff up.