Yeah, that’s something that’s a bit lacking IMO—once you pick somebody you’re basically with them 24/7, despite that theoretically all five of the guys are MC’s friends. It’s gotten a bit better with crossovers (Spencer for nostalgia or Dozer/Chester for support or Darius interfering with everybody) than it was earlier on, but is still pretty focused.
Though that can make sense too—I know there are some players who just don’t like one or another of the characters, so having them butt in would be unappreciated.