IMHO no need to be quite so harsh on this guy. My read of the pictures (and thus insufficient data) is a fine electrician who had a _serious_ brain fart.
The neat workmanship suggests that sort of pride that comes of wanting to do a good job, and the mistake was one that was missed by the inspector as well. In fact, I'd bet that this installation is reasonably safe because all of the bonded connections are probably made up perfectly, and can thus carry the induced currents without excessive heating. Not to say that this shouldn't be fixed, nor that the original electrician shouldn't be learning a costly lesson...just that this is probably a fine guy who should be more than welcome in this forum, and that this is an expensive mistake that would be appropriate in
https://www.electrical-contractor.net/ubb/Forum1/HTML/001764.html -Jon