A very interesting piece on Fr Ray Blake's blog about Christ described as the Angel in the Supplices te rogamus.
I share the view of many that the archaic Christology of that phrase in the Canon is one indication of its extreme antiquity. It is interesting that the version in the de Sacramentis indicates that, even by S Ambrose's time, it was already misunderstood. And that some clever-clogs at Milan had 'corrected' it.
People shouldn't 'correct' the Canon Romanus. Not even if they are Doctors of the Church.