Satoru never imagined that he could have died to Sukuna. He never questioned it. He most certainly never spoke to any of his students with the thought of "This is it." in the back of his mind.

So, to see,to know* *that he wouldn't ever be able to say goodbye to them... what would become of them? Who would they become?

"What did I just do...?" He was meant to be the strongest. He wasn't supposed to die to Sukuna.

Who was he if he continually failed to save lives?