Budget: Infant, BumGenius

Are BumGenius Itchy for Baby?

I received two newborn-size BumGenius 3.0 AIO diapers, and noticed that they have a stiff, square patch of material sewn in the back of them near the waistline. It seems like the edges of the patch would scratch baby's skin. Has anyone had a problem with this? My plan was to buy/register for about a dozen one-size BumGenius pocket diapers, but now I'm wondering if they would be comfy for baby.