p.33: "It is an absolute requirement that troops that would move into close combat in real life must do so in the game. Geometric ploys cannot be used to prevent enemy contact."
The question is not, therefore, whether column 5-8 can contact the Bd, but only how best to rearrange the other Pk and Ax bases to do so.
As umpire, I would allow all of 9-16 to be moved sideways (i.e. to EMTLU to Bd D). Column 13-16, if it obstructs 9-12 from getting out of 5-8's way, are themselves obstructing elements and can therefore be moved the minimum distance necessary (in this case a bit sideways) to get them out of the way. In practice, it's just the same effect as a huge line of troops EMTLUing sideways when just the end one makes contact.
Likewise, if the problem were not column 13-16 but only the Ax (e.g. if column 13-16 were already in combat and therefore couldn't be moved), the Ax could be shifted out of the way as an obstructing element.