Yes, it all seems so antiquated as we look. To be fair, the blame-the-victim mentality was pretty widespread in the 60s and 70s, and Watchtower publications were just one of several sources that reflected this simplistic, patriarchal mentality.
I think if you look deeply enough, you'll find that this mentality also prevailed in lots of Christian groups, and was not unique to the JWs - which is not to excuse the nonsense they wrote about rape - but just to place it in the context of societal norms at that time.
As much as the witnesses like to believe that the Watchtower is above worldy trends, it is in many ways a product of its time: As bound to societal myths and prejudices as any other organization. l