That is testing that is not real world.
You see a bird in the bush and you take the picture. The background is blown or you can't see the bird.
With my eye it has enough range to see both.
The camera does not. In LR you can kill the highlights and raise the shadows but it is still less than the what you see.
We are talking usable range, if modern DSLR have more range they do not have more usable range due to noise.