U.S. Postal Service uses wrong art - printer gets the blame

Why is it that the printer is always blamed when there's an artwork mistake?

Recently the U.S. Postal Service released this new 44 cent stamp:
honoring Liberty Enlightening the World, better known as the Statue of Liberty. The U.S. Postal Service issued a press release about the new stamp stating: "The statue, located on Liberty Island in New York Harbor, was designed by French sculptor Frederic-Auguste Bartholdi."

Unfortunately, that is not the statue featured on the stamp. Instead it is a half size replica located in front of he New York-New York Hotel and Casino in Las Vegas Nevada.
Liberty lighting the way in Las Vegas.
The original on the left and the replica 2,600 miles away in Las Vegas.
The original press release (now updated) makes no mention of the statue shown on the stamp being the Las Vegas replica rather than the New York original.

Unfortunately Time magazine referred to the Post Office error in these words: "Even the Post Office didn't pick up on the printing error" and "perhaps the original message of the stamp has been lost in the misprint" (Click HERE for the full Time magazine story).

It seems that the printer always gets the blame when things go wrong.