I know I have to be wrong about this because I look at this too simply. God inspired Luke to write a historical account, and to communicate along with the facts a unique spiritual perspective. Luke mixed up a detail in his memory writing about it. A human error in the midst of an inspired storytelling account.
In spite of VP saying "your whole Bible would fall to pieces", somehow it doesn't. In spite of the human error. Or maybe it falls apart to the scribes, who could never get past their paralysis by analysis anyway to live the stuff.