I think sometimes we read to much exactness into Phil's post - the case in point was one where the wider group could move, and that was what he was addressing.
He often doesn't "bother" to consider other situations with his answers as "we" often do - so IMO if you're in DGO and have to move as 1-element-wide-columns then you do so and they can all wheel per Fig 16 if and when required.