If Bergoglio said that he was merely affirming the official position of the Roman church.
He didn't and it's not.
There has been a phony news article in circulation for at least six months that reports Bergoglio said that Muslims and Christians worship the same God. I'm guessing that the Wheaton College professor got snookered by a new version of this and used it as the basis of the statement in her Facebook post, "Pope Francis stated last week, we worship the same God."