By tomorrow, this should be in a mostly upright position. So far, my sprouts that emerge from the soil without their seed coats seem to be the healthiest. What's happening is, as one stands up, if its seed is buried deep enough in the soil to be held down, the rising stem and buried seed coat help pull them apart.
I thought I'd try a little experiment here. I just placed two toothpicks (not pictured) in an X across the seed coat, with the hopes to keep it pinned down as the stem stands up. Hopefully, later tomorrow, the plan will have worked, and the seed coat is laying on the soil, with the cotyledons fully exposed.