Not sure if this is right. But here goes …
When John tells us that ‘the Word became flesh’ I take it he is being more specific and detailed then simply saying ‘the Creator became a human being’ (though of course, he is not saying less than that).
It is the Word who became flesh, the Word of God. The incarnation is not just an act of revelation per se. (there had, of course, been plenty of revelation prior to the incarnation), it is revelation made incarnate. It is not just the case that the Creator became flesh but that the Word of the Creator became flesh.
Or put another way, it’s not merely the case that in the incarnation the Author of the story entered that story as a human character, but also that the story itself [or 'Story himself' perhaps is better?] became a human character within the story.
If correct, I think this could help us tie together such biblical themes as ‘Christ as Logos’ and ‘Christ as recapitulation of Israel’s history,’ or ‘Christ as Last Adam.’