I agree with Gray Ghost. The exception of Dark Urge, we are all just random people who have been tadpoled. There's no reason, at least that is given, that the Dream Visitor has any reason to pick us specifically as their champion.
Even so, the companions could have more meaningful interactions. The overland party banter is mostly neutral in content regarding any interpersonal relationships. Even if you saw them talking to each other in camp, sitting around the campfire and complimenting Gale's cooking, it would help cement that the group is a team working together, not just working for Tav.
