(am I correct in that you're leaving the IHH templars AND sending the poor Marshal over to them, after dragging him in here?)
Rashid disagrees that the Marshal should be left here, alone with the other stragglers. His toil is not over, and leaving him here will not help anyone in particular.
If all goes well, more support will cross over and the stragglers will be fine, with or without him.
If all goes bad, they will be found and chopped down regardless of the Marshal being with them or not.
So, the Patriarch wants the Marshal to come along.