I find this interesting for a couple of reasons.
Firstly, it feels to me a bit like an oblique reference to, and inversion of, the "women in refrigerators" trope (the website where, as far as I know, this was most notably documented is here: lby3.com/wir/ — with a Wikipedia article here: en.m.wikipedia.org/wiki/Women_in_Refrigerators — basically, that female characters seemed to get killed and shoved in the fridge to provide plot developments and motivation for male characters quite frequently).
Secondly, the victim of abuse gets to be a person with a facial expression and an inferred story, while the abuser is an anonymous pair of shoes, which again feels like an inversion of all those news stories where a man gets his face and name published, stories of his life and what all his neighbors and colleagues and golf club buddies thought of him, speculation on his motivation or whether he was unwell or just snapped, while the woman he killed gets to be "wife" or at most a first name plus his surname.