I welcome this news primarily because people should be free to do what they want as long as they are not harming others. I respect the courage of women who stand up to the pressures of orthodoxy.
Secondly, there is no religious requirement for the person solemnising the nikah to belong to a specific gender. In fact, the bride and the groom can even do it on their own rather than go through wakeels (officiators), or the bride or the groom can be the only officiator, solemnising the nikah on her/his own behalf and acting as wakeel of the other.
The fact that men generally perform nikah owes it to the nature of a traditional male-dominated society. What is required by tradition is not necessarily required by Islam. This is not to say that every perceived bias towards women in the name of religion is solely due to bias in appearance rather than bias in fact.