I assumed Ripley 8's Xeno-empathy thing was exclusive to the AR hive, since they had her memories too, weren't average aliens, being cloned mutants like her.
So an unrelated hive like the one in LV-178 wouldn't really react to that link. But I get what you mean, when I first heard about the book I was sure he was a descendent of Ripley 8, seemed like the obvious route to go for that case.