Death is the most faithfully adapted character in the whole show, so if someone's complaining about that, they're telling on themselves. They nailed Death.

I was pleasantly surprised by that; there's a (somewhat well-regarded) audiobook adaptation of the books, with James McAvoy as Morpheus and Kat Dennings (the older daughter in 40 Year Old Virgin, and, by appearances, a straight-out-of-central-casting choice for Death), and Death does not work at all in it.