"it makes a mockery" I don't think that means what you think it means. It doens't mean "I don't like this mechanic" which is how you're using it. Like most of the mechanics in the game, you're free to ignore it and rely on healing potions or heal spells or even life leach.
So you're suggesting that even though health regen has made sure the precious bar is replentished for role-playing purposes and effects one should keep on drinking health potions or casting healing spells?
This would be a laughable statement.
I'm not tto sre about this whole issue. Conceptually, I dislike it. But it's not really intrusive.
I also think that Justice would be served if evryone - not just the PC - would get health regen, which currently is not the case.
So, I'm ok with it, maybe toning it down a bit wouldn't hur, as long as everyone gets the same benefit.