Way back in 2010 / 11 we had a discussion (thread might not have survived the forum migration), where many people expressed their wish for women wearing armor, which looks like it offers protection. Not that we were a representative group of the audience, but still. Also it’s more efficient for Crate, if they use unisex designs.
Do you feel caster gear looks like regular and heavy armor in GD? Head and torso gear look quite distinct to me. Not to speak of caster off-hands. Then again Crate wanted wizards to be more like battle experts and not the stereotype weaklings. Paired with the dual mastery system and the resulting build flexibility your equipment might not look archetypical. But it is want the devs have envisioned for GD. And if you don’t like the look you visit the illusionist.