Vivienne,
As Spero stated,
It is to assist the Judge in his own decision and not as the media and RM FB group claim 'the father will decide if they mother is jailed'.
I think she should be jailed, but if I was the father in this case faced with this question (and in my own case a judge did ask me for my opinion on an order that prohibited the mother from doing something) I would probably say that I was against the mother serving a prison sentence.
The Judge may have already decided to sentence her, and may do so anyway, but it is fair to give the father a chance to voice his own opinion before the decision is given, especially as this is being publicised.
The RM supporters will find a way of blaming the father regardless of what he says, so there is little chance it would make much difference to those that are trying to blame him.