Title is pretty far off. It was found that regarding that case alone it was fair use for this one PHOTO (not photoS like the article notes).
Also the person using the photo took it down as soon as they found out it might be copyrighted so nobody got the all clear to use the photo long term here or anything.
And it is not "photos" but just a "photo".
This is an appeal if I've ever seen one.
I think it was a reasonable solution, the article's title is click-baitish in that the ruling was for a non-commercial use.
Also, the infringer swiftly complied with the takedown notice.
So, don't go around using non-attributed photos :)
The title here is a little deceiving. The court just found that in this particular case, use of the photo met the factors that determine fair use.