Jujutsu Kaisen Chapter 208 Discussion

I don't understand the slander for Gege and his decision to kill Yuki. She can still get a flashback and tbh what else does she need to do for the story? This is unlike Stars and stripes in MHA; we were introduced to Yuki relatively early in the story and she made appearances in Shibuya, Gojo's past, and the start of the culling games. We already know her goal to get rid of cursed energy, her being a former star vessel, and her abilities. She or Choso had to die in this fight, through the whole Culling games the good guys have been catching w's/. Choso was the obvious choice to die, so I respect the less predictable decision.