This looks wonderful.
I think a bit of noise and some imperfections are completely OK (more so if this can get better with years coming due to more hw performance). Not so long ago software renderers in 3d apps have been struggling with AO/GI flickering during animations and so it feels like a game engine should have the privilege not to be perfect 
What I wanted to ask is how will these techniques work with characters (deformable meshes). Docs mention a few times that limitation is that it works only with static meshes. Can the DF GI light the characters (without characters “lighting” the environment)? Are there some options, workarounds or complementary techniques in plan that could be used on deformables while the DFGI works on static geometry?