This is pretty bad stereotyping. Women players have just as wide a variety of Strength-based warriors, Dex-based anything, or casters as any male player. Its hard to argue that women -characters- tend to be more dex based (or caster), but that's more of a sexist stereotype that runs in popular culture than actual play.I tend to think the goal was to appeal to women, who stereotypically prefer lithe dexterous archers over strong melee brutes. It's a kind of hypercorrection to the old rule where female characters had a lower strength cap than males.
Gender / sex has nothing to do with the game design. Did the designers want to make Dex characters viable without some kind of tax or MAD requriements? Absolutely. Did male/female enter into it? No. Sometimes, people just want to play a Dex character over a Str one, and vice versa.