I agree that armour that's too revealing is unfortunate and should be avoided. I wouldn't mind if the women were wearing the same practical armour as the men.
It is sad that compared to most games, the "boobplates" of Divinity 2 are actually more protective and functional-looking than the standard fantasy game's female armour.
It's true that "boobplates" are not practical for real life fighting. But this is a game, not real life. Magical potions will heal all wounds without a scar. There are talking skeleton bombs. Ranting on and on about how unrealistic boobplates are misses the point a bit.
Yes, the armour in Divinity 2 wasn't realistic for either gender, but it looked fantastic. And in a fantasy game, shouldn't fantastic and cool trump practical and realistic?