Finding the right therapist and finding the right rave to help with a certain problem is the same. You have to search for the one that has the expertise in the field. Most Rabbonim are NOT trained. So lets not generalize on this issue.
Not every Rav has the knack, the patience, the knowledge or a real vested interested in Shalom Bayis. And when you get the wrong Rav involved it causes much more harm than good because all they do is quote halacha and not apply halacha to what is happening in life. In addition they tend to force couples to stay together no matter what, instead of really and truly listening to each side and helping each side. Only those truly immersed in the dinim of Shalom Bayis should be trusted with a precarious marriage.
The same goes for a therapist, if you need marriage counseling don’t go to a therapist that specializes in trauma. Search for the right individual and the help that you need according to whatever the issues are.