To be clear, the current system has a similar bias against non-white people. The rate of conviction is higher for non-white people, the sentences are harsher, and defence is less likely to be adequate. This is an attempt to balance things out a tiny bit and to hopefully not completely ruin the whole life of a person due to a series of bad choices. She should have known better, she has no justification for this behaviour, and what she did was wrong.

She will serve a 3 year sentence rather than a 4 year sentence. That is still 75% of the time and still has all the other associated harms such as being denied freedom, difficulty reintegrating with society, and loss of social bonds and status. She is not getting off without punishment, she is not getting off with a slap on the wrist, she is being imprisoned and will be marked as an abuser.

If the argument was “No abuser should get off with so little time in prison” or “Prison time is I effective at preventing SA” then we could have a conversation, but in this case it is all about the fact that a factor like cultural and social background resulted in a reduction in sentence when it normally results in a higher likelihood of sentencing and long prison time.