And just so we are clear, DRM is independent of copyright and license. the lack of DRM does not mean the author/publisher relinquishes claims over distribution

And just so we are clear, DRM is independent of copyright and license. the lack of DRM does not mean the author/publisher relinquishes claims over distribution channels, but here they are saying "we trust you not to share it". Your argument reads like "if its easy it must be legal".