Is RecalculateNormals() broken??

Hi guys,

I was playing around with mesh generation (in particular hulls) and I've noticed very weird behavior on the normal recalculation algorithm so I've decided to make some tests. So If i make a simple cube with no uvs in blender, smooth it's normals out at max and then visualize them in unity.
This is what they look like:

Then I've recalculated the normals with RecalculateNormals() and this is what they looked like:


What is this? Isn't there a way to either make them average smooth like in any 3d software?