Your partner needs to want to do this program for themselves. Your partner needs to be committed to changing because they themselves want to change.
My partner has never been physically abusive and I have never feared for my safety. However I was not happy with our relationship.
The work that he does is brilliant and the way he is tackling the systemic toxic masculinity is vital work. In a primary setting we are not immune from it and see these power imbalance type behaviours being reinforced by dads and ignored or brushed over by mums.