As I understood it, AGPLv3's contains a clause that allows the users (Purethink in this case) to remove additional conditions added to the license. In this case

As I understood it, AGPLv3's contains a clause that allows the users (Purethink in this case) to remove additional conditions added to the license. In this case to remove the Commons clause because it was added to the AGPLv3. So they can use the Software under pure AGPLv3. | But if the license is referred to as the AGPLv3, then its Further Restrictions |Clause – which allows users of APGLv3 licensed software to remove added |licensing terms – If they had called anything else than AGPLv3 (something that i understand is permissable) than they can not remove the extra restrictions because only the users of AGPLv3 can remove those.