The only thing I don't like about the camp is the fact the surroundings don't match where you are. Whether your party is in the underdark, a cave, in a city or in the wild, the camp seems always to look like a nice opening in a forest, which kills the immersion in my opinion.
I know it would be more work for the artists, but if they could make the camp look like the area you are actually in when you decide to take a rest, I would be fine with the mechanic.
It's fine to do it this way for the alpha, but having the camp area at least share the same general tileset as the area you're in is something I think Larian could at least look into.