Those who encountered the Homeloss would inevitably establish a "connection" with Duncan. Yet from another perspective, Duncan, this "Outsider," indeed needed to establish such connections in this world—to grasp as many channels of knowledge and assistance as possible, only then could he further understand this world, the Transcendent realm, and even... himself.
Perhaps Morris and the others were brought aboard the ship due to the urgency of the situation, but even if they hadn't boarded today, Duncan had plans to expand his "influence" in this world. In his view, the few people currently gathered on the Homeloss happened to be quite the right choices.