It is horrific, but I found the article quite confused. Men who happen to be police officers who commit acts of domestic violence and are then sacked are a separate issue from the institutionalised misogyny of the police & justice system. Unless the Met knew that they had violent and misogynistic tendencies before recruiting them, it hadn't done anything wrong in those cases, and did act appropriately when it found out. (It would be great if we could screen out men with these tendencies from entering the police, medicine, the Law etc, but at the moment we can't do so reliably, unless they have a criminal record.)
I am not minimising the suffering of their victims but I'm concerned it lets the Met off the hook to include these cases in an article about the many incidents when the Met has completely failed to take appropriate action against men who use their status as police officers to assault women, or when it fails to take violence against women seriously. Violence against women is horrific in any context, but it is much worse when a man in a position of responsibility uses that position to target women.