And is this having a mechanical effect? While experiencing the searing pain of a fireball are the characters getting any disadvantages? After the sword slices through flesh, is there bleeding, which will continue to weaken the character until treated? Probably not, because fights in DnD have to be meta because of the sheer number of them. It's abstracted out of necessity. And once again, not a problem, but certainly meta. The loss of hp mean very little until they start creeping toward 0, therefore, I'm not in my character's shoes, experiencing the world through her eyes. FATE is criticized for its meta mechanics, but having a fate point slide my way is just as meta, to me, as those vanishing hp, from weapon blows, fire, acid, exploding traps, that don't actually have consequences until I'm dying.
But then all rpgs have meta elements. They don't bother me, or break my immersion.