That's not how I read it. As in, this is an incidental comment. But the unprocessed version is the raw values from the sensors visible in the first picture, the processed are both the camera photo and his attempt at the end.
This whole post read like and in-depth response to people that claim things like “I don’t do any processing to my photos” or feel some kind of purist shame about doing so. It’s a weird chip some amateur photographers have on their shoulders, but even pros “process” their photos and have done so all the way back until the beginning of photography.
But mapping raw values to screen pixel brightness already entails an implicit transform, so arguably there is no such thing as an unprocessed photo (that you can look at).
Conversely the output of standard transforms applied to a raw Bayer sensor output might reasonably be called the "unprocessed image", since that is what the intended output of the measurement device is.
