Isn't that a linear DNG, rather than a "true" (Bayer/Xtrans) raw?
From what I infer from Eric Chan's blog post, Enhance details is applied first, and that applies demosaicing, doesn't it?
Yes, the output files appear to be linear DNGs. When you compare the file sizes of the raw sensor data with those enlarged by ACR Super Resolution, it's clear the latter have been demosaiced:
-rw-r--r-- 1 xx staff 45M Jan 12 13:21 DSC_5178.NEF
-rw-r--r-- 1 xx staff 531M Mar 10 15:35 DSC_5178-Enhanced.dng
-rw-r--r-- 1 xx staff 26M Nov 9 15:17 XTTH0039.RAF
-rw-r--r-- 1 xx staff 320M Mar 10 20:21 XTTH0039-Enhanced.dng
Still, they're "raw enough" for most practical post-processing purposes.