Yeah, Epic dropped their SVOGI push pretty soon after UE4's initial unveiling, largely due to its performance limitations. But we have the consumer PC hardware now to make that feasible for game development, not to mention far more efficient real-time GI techniques. Is there any real game out there, however small, doing approximately what you see in this developer walkthrough?
edit: that should read "unified SVOGI/its hybrids" up there, though I probably should've written "its offshoots" or something instead
edit: that should read "unified SVOGI/its hybrids" up there, though I probably should've written "its offshoots" or something instead