I do not see how camping is immersive. It is just a gameplay necessity due to D&D mechanics and overcomplicated through narrative choices. It was Larian's choice to tie narrative progress to the camps and hence constant camping is needed unless you want to lock yourself out of content. Yeah it is a balance mechanic, but noone forces you to camp, unless again for story reasons. Gameplay wise it would make more sense to either got he Obsidian route with per turn/encounter skills and little need for rest, instead of making camping more of a hassle and more of a necessity for narrative reasons.