If someone knowingly puts up the wrong photo, they should be ashamed.
And folks "up the food chain" responsibility, and publicity-wise, IMO hold a greater responsibility to verifying photos and such; one, because they are information sources (and are thus held to higher standards); two, because their greater visibility means an untruth/misstatement/lie/whatever it is will be more often copied & repeated; three, they have greater resources to fact-check.
Now...having said this: That one photo is by no means the only basis on which estimates were offered. In fact, I would contend it is quite the minor issue.
Several other photos (as well as a time-lapse on Youtube) have surfaced, making the "60,000" claim continue to be a laughable assertion.