AVRT is, as the last letter indicates, a technique.
a technique for recognizing and then rationally dealing with the "voice".
it is a tool.
personally, and no it's not what you asked about: i didn't really have problems identifying the AV and it's irrationality, nor was it difficult to counter the non-sensical "arguments" it threw my way.
in the end, i was repeatedly left with the irrational aspects of returning to drinking against my better knowledge.
calling it "beast" helped me at the beginning of my sobriety, and yeah, it helped by the separating it out from "myself", but that only lasted/worked a little while, as eventually i couldn't continue with this split; there's one me only and "the voice" is also me.
which is not in line with RR as i understand it.