Actually, that day we're discussing about taking pictures in raw as compared to jpg.
For salvaging a picture, there's 2 part
1. Recovery of details.
2. Enhancement (adjustment/touchup) etc..
Had that picture been taken in JPG only, any recovery would be futile.. Step 1 is not possible, and it's better to just discard the picture then to attempt to salvage it.
Bcoz it was taken in RAW, recovery might be possible. And as shown, who can tell from the final product that the picture was blown?
So.. it just a matter of RAW vs JPG..