OJW, Disrupted units lose their cohesion. A machine that needed many minutes, and up to hours, forming or changing formation, like a Napoleonic unit changing from column to line, or skirmish to any good order formation, was not going to complete a task regardless of when it was started.
Disrupted is a formation. It is the lack of regular formation. Guys do not work as a group when they are disrupted. The difference between a mob and column is that the column obeys orders, the mob doesn't. :march:
HSL