The warning for the moon warp had been on such short notice. He hadn't been able to retreat back within the shields quick enough and the others too, most likely. But they couldn't stick close to the Convoy all the time; they still needed to scout, scavenge, find whatever scraps of knowledge they can. Risk at the price of safety.
no subject
"Will you remain behind the shields next time?"
There's no judgement in his voice.