Stamina is a pretty bad mechanic but this post is inaccurate.

You don't die when you run out of stamina. It just gets tricky to fight back. You can still block attacks and move around while you regenerate. Also regeneration speed is increased by your food and condition/buffs.

Saying that you die when you run out of stamina is needlessly hyperbolic, but I would be more than happy if this mechanic was removed.