Women's Aid gender bias lessons for 4 year olds.

Should Women's Aid be involved in producing lesson plan for reception children, children who are 4 years old, on Domestic Violence?
You can read the publication here :Expect Respect Education toolkit - Women's Aid
I taught PSHE to ket stage 1 and 2 children and my concern is that this is totally gender bias, and appears to be portraying men as being dangerous.
It says that most indents reported as with males being perpetrators, we all know that women can be equally abusive.
What message is this giving out to little children?
What will be the effect on the boys?
In my experience PSHE lessons must be taught sensitively and always with equality.
Jane