YT is on fire
If it wasn't for the plot Gojo would have been basically sleep diffed by a non even serious Sukuna as he could have reduced his entire head and brain into pulp or just vaporize him with his flame arrow.
Gojo only survived because Sukuna decided it.
The fallen decides who lives and who dies.
This is what Gods beings do.
This said Sukuna made a mistake here. A big one.
Gojo knows now. He wont be tricked twice.
Whatever their plan is it will eventually work.
(This or Kenjaku will takes Gojo's body.... Which will be twisted AF).