I would rather see posters with stories of women who managed to leave and turn their lives around despite it seeming hopeless at the time.
Those posters exist. In fact most DV posters are this sort of thing.
When I was a solicitor, I had a client who was 78 years old. All her married life, her husband had beat her black and blue and also beat their children, who were now grown up. She was also part of a close-knit cultural community that disapproved of divorce. She said she had to finally do it and divorce him, just to be able to live out her last years in peace and not fear being beaten, especially now that she had arthritis. It was a long process (because he was an obstructive dick) but she did it in the end.
I strongly object to this sort of attitude, that leaving is an option for everybody and therefore the only one which should be supported. Even your discussion of Women's Aid focuses on supporting women who are not ready to leave 'yet' which is precisely why many women who don't want to leave just won't engage with them. Of course when there are children involved it should sometimes come down to 'leave or lose your children'. It's great that your client left, but just because she did it didn't mean that lots of other women either want to or will leave and that doesn't mean they don't deserve some support.
I've worked in two different ethnic communities where DV was fairly commonplace and accepted, seen as something the wife must have brought on herself. Leaving or engaging with Women's Aid would simply be seen as further proof she was a disobedient wife who deserved chastising. Leaving could cost you your entire family, community, grown up children, friends.
For every woman who leaves I would guess there are at least another 20 who just accept it as part of life.
I think the poster is awful because of the smiley faces and general presentation. But I think the idea that women should only be supported if they leave or if it's hoped they will leave in the future is an awful one.
Some women are only going to engage with support if they know leaving is not on the agenda. They're not going to engage with feminist organisations or ones which are known to support leaving. Even women's support groups for their own community are deeply stigmatised. Support via the frontline services of police and health are probably the only ways to engage them. They shouldn't be locked out of support just because they don't subscribe to someone else's ideology.