A marriage counselor is just one person. The peanut gallery is more people giving advice from different perspectives.
Would you walk into, say, a car dealership and ask for programming advice? Or would you talk to someone who programs for a living?
Technically if you asked enough car dealerships the same question you will get a mixture of right and wrong. If you ask just one you get just one answer, is it right or wrong?
I think your main point of seeing one is valid. We should consider doing that.