That description is terribly misleading. I would hardly describe the moon in our sky as a "spec," and the Earth is much larger than the moon.

The Earth in the moon's sky would look almost four times larger than what we see when we look up at the moon from Earth.

edit: For all the confused people below, avsa is not trying to reference the famous Carl Sagan quote "pale blue dot." He is referencing this quote from Jim Lowell:

"We learned a lot about the Moon, but what we really learned was about the Earth. The fact that just from the distance of the Moon, you can put your thumb up, and you can hide the Earth behind your thumb. Everything that you have ever known, your loved ones, your business, the problems of the Earth itself, all behind your thumb. And how insignificant we really all are. But then how fortunate we are to have this body, and to be able to enjoy living here amongst the beauty of the Earth itself."

Note that the quote is both accurate but misleading in our context here.