Assigning the right people to help investigate the ruins and monster remains within the large cavern he and Mordant had come from was easy for Walker. However, those he had called upon were going to need to hold back so that Mordant could take the lead on their new friend, the shadow eating octopus.
It wasn't necessarily that the researchers and soldiers would be attacked, but it would not be fair that they overwhelmed the one who had spent so much time alone. No matter the person or monster, they would struggle to handle the high number of people around them all of a sudden. It was just best for everyone.
Walker thought that he might be insulting not to go there himself. He had made a promise as well. The only issue with that was that he was now part of the investigation of other wilderness areas and the odds of him returning to Genesis any time soon was lower by the minute.