The 7 Step program is dedicated to dealing with the infidelity whereas marital counseling often takes rabbit paths and focuses on repair of the “relationship” rather than introspection of the person.  Often the counselor will take the approach of blaming the victim, which only devastates the betrayed person who is already struggling.   The counselor knows that if some personalities are offended or pressured they will not continue with the counseling hence the services stop so a lighter approach is pursued and little introspection of the factors that lead to the affair are considered and/or explored.