Redistribute Standard Assets and/or free Unity Assets as part of my AssetStore Product?

I often see Standard Assets like CharacterController, TerrainAssets or ImageEffects etc. redistributed with AssetStore products to showcase the actual product.

Now, is this just tolerated or is this explicitly allowed in some license somewhere?

What about other free Unity Technologies Assets like Space Robot Kyle or the Robot Lab? Can they be redistributed to showcase the actual product?

The Terms http://unity3d.com/company/legal/as_terms (section 2.2) seem to forbid this:

....It is emphasized that the END-USERS shall not be entitled to distribute or transfer in any way (including, without, limitation by way of sublicense) the Assets in any other way than as integrated components of electronic games and interactive media ....

And I don't think unitypackage files are interactive media. And it also seem, that this is not tolerated as I don't remember seeing something like this actually done. Or is it?

Now, People associated with Unity Technologies often basically state that the Assets can be used for pretty much everything as they are considered public domain, but this seems to conflict with the above license. http://forum.unity3d.com/threads/32400-Ethical-use-of-Unity3D-made-templates-in-own-games?p=211285#post211285

How do the Licenses for the StandardAssets differ from the free UnityTechnologies AssetStore Assets?

For example the "Mecanim GDC2013 Sample Project" states in its description "All assets contained in the project can be used freely" - Does this mean it can be used for the above described purpose or does the AssetStore License override this statement?