I've got a pedantic one for you here that initially triggered off of a situation where a squadron already on top of the space station tile and engaged wanted to heal on the tile while engaged without physically moving, because of course being engaged prevents movement.
Looking through the RRG you can see references to ships counting as having moved even when they don't physically move. I can't find that reference for squadrons.
One thing I'm sure of is, if the squadron is not given the opportunity to move - that is to say activates by firing during the squadron phase - them it shouldn't heal if stationary on the station. If, however, it is activated via the squadron command and can therefore both move and shoot during a turn, or "moves" distance 0 during the squadron step, I can see an argument for allowing it to heal as if it had moved.
This "has it moved" question will keep coming up in the future (i.e. Mauler Mithell) so we might as well tackle it now!
Thoughts?