I'm trying to figure out how this shows it's a bad reason to shoot RAW, and why it was not a good reason to save that RAW.
Seems to me that this shows exactly the opposite.
Because you shouldn't save raw files just in case you need to pull one out of the fire
Why not?
I dunno Joe's reasoning, but for me, (while I may often employ this tactic), RAW should not be used as a crutch for poor photography and you should not be lazy and sloppy with your exposures knowing you can pull them out in post. (Or maybe, Joe just doesn't want everybody to send him their poorly exposed files for his recovery operations.)
Gary
PS- Good job on the processing. I guess the buck stops with you.
G