Classic Traveller, in its 1981 revision, has no death spiral: damage taken ablates physical stats, but the consequences of that ablation are not experienced in the current combat.You have information with D&D. Perhaps just not the level of detail you may want. But if there is no death spiral, no consequence to intermediate injury then it's just pure fluff with no inherent meaning.
It's still simulationist, compared to D&D, in that we know that taking a couple of dice of wounds from being shot is some sort of physical injury, and we know that it's not fatal, if the character is not at zero on any stats. Compared to the die of wounds from an arrow in D&D, which could be anything from a graze to a wearing down of luck to being a near-mortal wound, depending on the overall context.