What if Rika eats Sukuna's final finger, and that's why Yuta is considered "assurance"? 🤔 #JujutsuKaisen Could he have already copied Shrine?

What if Rika eats Sukuna's final finger, and that's why Yuta is considered "assurance"? 🤔 #JujutsuKaisen Could he have already copied Shrine?