My argument about the historical frame of the Christmas stories and of Simeon’s prayer in particular has been subjected to sustained criticism by Peter Wilkinson, who is certain that at least in the latter case there is reference to the salvation of the nations.
Since Peter is unconvinced by the exegetical arguments, it may help to explore what is going here at the hermeneutical level. One way to account for the disagreement would be to view it as a question of how much respect we have for contextual boundaries. Peter takes the popular line that contextual boundaries may be disregarded in order to preserve traditional interpretations. We naturally want the Christmas stories to be about us. We have a hard time accepting the idea that the traditional discourse of Christmas—the carols, the readings, the nativity plays, the evangelistic sermons, not to mention the doctrine of incarnation—is all a massive over-determination of the texts. I take the view, on the other hand, that contextual boundaries should be respected, even if this means that traditional interpretations are weakened, sidelined, deferred or rejected.