If I'm reading it right, the 2003 PROTECT act requires that CG images must demonstrate obscenity rather than simply showing images of minors. Regarding
The Miller Test in particular, these images clearly demonstrate artistic value, in terms of advancing the artform itself, even if some find the images objectionable.
Before anyone jumps on me, I'm most assuredly not advocating for child pornography; I'm just stating that in this case the existing statute doesn't seem to apply.
And in any case, the quality of the CG is phenomenal.