I've rarely seen women who were truly crossdressed. (though if completely passable I may not have noticed, of course). I've seen plenty of women dressed in an androgynous manner and less often those dressed in an overtly masculine manner - but they still didn't come off as crossdressed. The intention to BE male just isn't there. A masculine woman is not the same as a crossdressed woman.
I prefer to view changes in acceptance patterns of certain clothing types in terms of convergence, or universality, rather than the adoption of men's clothing by women. To focus on the menswear perspective is to ignore changes that have taken place in men's clothing which would have been completely unacceptable in the past.