If you like it that's fine but don't try to convince other people it's better because it's more realistic or whatever, neither is anatomically correct. The wider the hips the better imoHer posture was bad all this time. Her hips are not smaller, but only appear that way because her lower abdomen is now shorter. If you overlay the old model on top of the new one and compare them by changing the opacity, you can see the differences more clearly.
Her lower abdomen was out of proportion to her body and she was standing in some kind of "sway back" posture.
Nobody was complaining about her "posture" before. I think that posture was intentional to make her more perky and energetic instead of looking bored like in the new one.