I'd be curious what co-parenting issues are arising where you feel therapy would be helpful?
I had so few interactions with my ex-wife the first few years of marriage I couldn't see how this would have helped. Maybe if we were butting heads over school/medical choices, couldn't stand being in the same room, or our kids had special needs. If you are having such issues, sounds wise! I have consulted therapists on how to best help my kids through issues, and leveraged CPS to ensure appropriate care.