I think it is a death spiral for the guys in the front, for the reasons you mentioned.
Plus, a system like this requires more administration than it is worth in my opinion: how many times have I been healed before? How many hp do I heal less with every healing again? To me, that seems too much trouble.
I guess there are those who have to play hp in a way that every hit requires a (more or less) actual severe wound. Then there are those who use them narratively all the time. Taken to one extreme this leads to porcupine fighters, covered in arrows. Taken to another extreme there never has to be physical injury (except when poison comes into play), and hp are almost always covered by morale, stress, fatigue etc.
And this is why I kind of like hp the way they are and why I think they should not be changed in 5e: it leaves a lot of room for all different kind of games and playstyles. In that way, hp are very inclusive. And inclusiveness is good.
Plus, a system like this requires more administration than it is worth in my opinion: how many times have I been healed before? How many hp do I heal less with every healing again? To me, that seems too much trouble.
I guess there are those who have to play hp in a way that every hit requires a (more or less) actual severe wound. Then there are those who use them narratively all the time. Taken to one extreme this leads to porcupine fighters, covered in arrows. Taken to another extreme there never has to be physical injury (except when poison comes into play), and hp are almost always covered by morale, stress, fatigue etc.
And this is why I kind of like hp the way they are and why I think they should not be changed in 5e: it leaves a lot of room for all different kind of games and playstyles. In that way, hp are very inclusive. And inclusiveness is good.