Is a boy's mushroom cut ok for a woman?

Yesterday my wife got her already short hair cut into what I would call a boy's mushroom cut. Basically the top of her hair is cut in a regular short, layered, ladies style, about an inch and a half long. But its the back where it gets interesting, there is a very straight, severe, weight line cut straight across, from top of ear to top of ear. The hair below the line is shaved to stubble. The only time recently that I have seen this hairstyle is on three year old boys. Back in the early nineties women sometimes wore this style, although I think it was more popular with teen age boys, even then. I must say it looks real cute on her, but I was wondering since I never see another woman wearing her hair like this. Is this hairstyle becoming popular again?