The following commentary on Luke 12 says that this is a rabbinic construction:

> 20. Fool! says God. A man’s life is an uncertain thing at best and no-one has the assurance that he will live the years he would like.
> The really stupid thing was the rich man’s easy assurance that the
> future was in his control. **God said to him This night (first for
> emphasis) your soul is required of you. The verb is literally ‘they
> require’, a construction common among the rabbis to denote an action
> of God (SB), i.e. ‘God requires your soul’.** A man whose life hangs
> by a thread and who may be called upon at any time to give account of
> himself is a fool if he relies on material things.
> 
> Morris, L. (1988). Luke: an introduction and commentary (Vol. 3, p.
> 231). Downers Grove, IL: InterVarsity Press.

The commentary refers to SB, which is identified as this source:

> Herman L. Strack and Paul Billerbeck, Kommentar zum neuen Testament
> aus Talmud und Midrasch, 6 vols. (C. H. Beck’sche Verlagsbuchhandlung,
> 1922–56).

As to the idea that God delegates the appointment of the day of people's deaths to "death panels" it seems to fly in the face of Matthew's assertion that not even a sparrow dies without God's involvement:

> BSB Matthew 10: 28Do not be afraid of those who kill the body but
> cannot kill the soul. Instead, fear the One who can destroy both soul
> and body in hell. 29Are not two sparrows sold for a penny? Yet not one
> of them will fall to the ground apart from the will of your Father.
> 30And even the very hairs of your head are all numbered.…

And if God is on the alleged death panel then he would not use the third person but the first person plural: "we will demand of you".

Also we see the third person used in reference to death in the very Jewish "To the Hebrews":

> Berean Study Bible Heb 9:27 Just as man is appointed to die once, and
> after that to face judgment,

And in Deuteronomy Yehovah claims responsibility:
 
> NASB Deut 32:
>       39 **See now that I, I am He,
>             And there is no god besides Me;
>             It is I who put to death and give life.**
>             I have wounded and it is I who heal,
>             And there is no one who can deliver from My hand.
>       40 Indeed, I lift up My hand to heaven,
>             And say, as I live forever,
>       41 If **I sharpen My flashing sword,
>             And My hand takes hold on justice,
>             I will render vengeance on My adversaries,
>             And I will repay those who hate Me.** 
>       42 I will make My arrows drunk with blood,
>             And My sword will devour flesh,
>             With the blood of the slain and the captives,
>             From the long-haired leaders of the enemy.’
>       43 Rejoice, O nations, with His people;
>             For He will avenge the blood of His servants,
>             And will render vengeance on His adversaries,
>             And will atone for His land and His people.