How do you feel about metaphors with obvious flaws?
In fact, in order to make Density to GA comparison fair former needs to report all its tracking activity to a single source. Then they will be the same both in intent and implementation. Except, of course, for GA being free.
I asked original question assuming that you realize direct resemblance between Density and GA. But since you don't, I honestly don't understand how you cannot see it.
Those are very different things and they mean very different things in people's lives.