It does, cos the counsellor does not personally know the couple so advice given is impartial. And sometimes it's better than discussing it with friends ...
The secret of life is honesty and fair dealing. If you can fake that, you've got it made. - Groucho Marx (1890-1977)
As a therapist I can say couple’s therapy will help in break the cycle that leads to anger, frustration, and disconnection, manage conflict in meaningful ways, heal past hurts that happened within the relationship, learn to be seen and heard by one another and establish shared meaning and life goals.