map edge hex or a Landing Site hex [16.2.3] entered by a unit is
always counted in the movement cost in addition to any possible
enemy ZOC cost [17.5].
I think that the penalty applies only for those that enter from the map edge or via naval landing.
I don't remember if there are any indirect fire support units "entering" play in Kemi or Tornio. Those wouldn't have the penalty if they didn't move.