"Spined Threshers only After each Command Phase you may perform a speed-1 {shift} sideways, even if this card is exhausted."
I've heard people on the forum believing this can be used to disengage from a unit. Considering Rules reference states "to disengage, the unit must perform the shirt in the direction directly opposite of it's contacted edge for that engagement." I would assume the only way you could use this shift to disengage would be if you are engaged on the side, aka flanked. If your front is engaged at all, you can't use this to disengage. and using this shift to reposition would result int he same contacted edges due to 73.3.
Am I missing something that I should consider before I encounter some Scuttling Threshers?