There are individual benefits, obviously. If a person has someone to talk to, someone to process her feelings with.... I'm a psychologist, so of course I believe that talking about one's experiences, especially those that are stressful, can have important beneficial consequences.
It also benefits the organization. In an organization, you want your employees to be healthy, both psychologically and physically. It makes sense to provide this kind of intervention for your own employees so that they can recover and come back full strength. It communicates to other women in the organization that you're taking this matter seriously. We know that's one of the factors of organizational climate. Does the organization take it seriously? When you provide benefits in the form of counselling to targets, you're communicating that to them.