It also makes me sad , cos that means no abuser would ever fix thier ways? If they cannot attend therapy with their spouse?
Mostly, they can't.
It's really rare for someone to recognise themselves as abusive. If they do, they need to take responsibility for change, via individual counselling.
Couples counselling isn't appropriate.
I had one DC, a baby at the time, when we went for counselling. We went nearly every week for a year. By the end of the year I was pregnant with DC2.
He made me sound crazy so many times. The counsellor would make suggestions for work for us to do, which would be valid for a 'normal' couple. He just wouldn't do it. She pushed & pushed over one exercise for 6 weeks. At the end of the 6 weeks, she just looked at him baffled, and gave up. He described scenarios where I had lost it, and I sounded mental. I would admit this but it was impossible to explain the context.
He finally admitted at the end that he had never had any intention of changing and never felt he was the problem. He was there, he said, for the counsellor to 'fix me'. The counsellor was stupefied. She actually cried. But I realise now she had no idea how abusive he was, really.
We had a third DC. Then tried counselling again. (I had given him an ultimatum; asked him if he wanted to leave. Said we had to have counselling if he wanted to stay, and he assured me he was committed to change). It was a disaster (expensive too).
When I look back, I was unbelievably stupid. He used to love going. The sessions were rubbish. After we'd get a coffee before going home to the kids. He loved that bit. He used to be happy for that short time & I decided to believe that he was changing. 🤦🏻♀️
I mean, honestly, I'd have clutched at any straw, I was so desperate.