I think this is only some kind of no clear translation from JP->EN.
On the German Site (im from germany) it say this:

Bei Gefechtserlassen werden Routine-Boni abgeschafft und die Routine wird gesenkt, die man für das Besiegen von Gegnern erhält. Stattdessen wird man Routine als Vergütung erhalten, sobald man einen Freibrief (z.B. eben Gefechtserlass) erfolgreich abgeschlossen hat. Zusätzlich wird der Routinewert auch davon abhängig sein, wie schnell man einen Freibrief absolviert; ob man sich an einem Erlass versucht, dessen empfohlene Stufe über der eigenen liegt; oder ob man während des Freibriefs Verstärkung erhalten hat.
compared to the english version:

The skill point bonus will be abolished for battlecraft leves. The amount of skill points awarded for slaying individual enemies will be reduced, but this will be offset by the inclusion of skill points as a reward for leve completion. To accommodate this change, factors such as recommended/actual rank disparity, completion time, and partial participation will be made to influence the amount of points yielded.
so there is:

1. How fast you complete. in both the same

2. the recommended and actual rank, also the same in both

3. but on the third point it says in the german verion, that SP gain varies if someone helps you with your leve (i think they mean without leve linking)
there is never mentioned in the german that you gain less SP when you do less actions.
so well you can discuss now, what translation is right or wrong. but i think they not mean that you get Less SP just because you attack 5 times less than the other person in your party.