I think training, counselling and those types of things can also occur without incarceration. In Alberta, where I'm from, our domestic violence courts use peace bonds quite regularly. This means that people are not incarcerated, but if they admit responsibility for the offence, they are still sent for treatment.
There's mixed evidence, though, on whether that type of treatment works, so again, what I'm encouraging is that criminal law be looked at alongside what happens in the family law realm so that we can be thinking about how these two systems work together. Look at the fact that sometimes, we need to have protections in the family law sphere, even if there has been treatment and/or incarceration in the criminal sphere.