Does this qualify as Death Manipulation?

[sukuna171]

Spoiler

Ahsa, lay low your flukes. Doff your cap and coat. You're safe here. You know you'll keep your promise to find the place where this all began. But for now, rest.

No, I'm not death, though it is my tool. "Nothing" doesn't interest me, you understand? A flawed existence is preferential to none at all. Things are the way they have to be, instead of the way they'd like to be.

 

[Arkansalter2]

Has he been shown to kill someone with said hax?

 

[sukuna171]

No, the entity hasn’t demonstrated direct death manipulation, but the Darkness--its representational force--is deeply tied to death.