Since air has to follow the laws of physics, the answer is no, distribution is NOT better with a DP manifold.
Since air has to follow the laws of physics, any time you put a corner in something you damn well better know why you're doing it.
The correctly sized single plane intake will always make more power everywhere than a DP intake. Always. You just have to get the rest of it right.
Just like a tunnel ram will always make more bottom end power than any single 4 intake. Always. You just have to get the rest of it right.