By the time the Androids were repainted, everyone was in a hurry to get packed up and start heading for the source of the additional signal. The Hunters wanted to know how things had gone for the rest of the species that they had found, and Max was eager to find out what had happened to them in the first place.
This was so far from where they had seen the Darklings working and from the planets that they were reported to have cleared in the past few centuries that it just didn't make any sense for them to have been Harvesting here.
If there were another faction of them which was operating independently, that would be incredibly valuable information to basically everyone in the universe, as the species had the technology to move vast distances undetected.
If it was the same group, it made even less sense, as they hadn't broken their usual schedule in Koleska space, where it was assumed that they were currently active.