Human rights activists and organisations, including Amnesty International have been lobbying government to abolish capital punishment and the exemption of women appears to be a compromise to appease the activists.

It's not news to most members here that humanitarian organizations are infested with feminism, and I suspect the campaigning focus was only ever to spare women from the death penalty and the men can be damned. Even though violence/murder against men by Zimbabwean women has increased and violence between women. Violence Between Women On the Rise in Zimbabwe | Global Press Institute

This raises an important point, we all know women in lesbian relationships account for the highest rate of domestic violence per capita in most western countries, but when statistics are collated (as in Zimbabwe) there isn't any distinction made regarding violence between women and what is inflicted by men, and therefore it gets wrongly attributed to men. Global DV data needs calibrating to give a more accurate and honest picture!

Also, Zimbabwe gangs of women have been serially raping men to harvest sperm for use in traditional luck-enhancing 'juju' rituals. But women raping men is not even considered a criminal offense in Zimbabwe, but men raping women can be executed. Men fear women in Zimbabwe after spate of rapes to harvest their sperm | Mail Online