CS: “Bit more nuanced. Even after dor shvii commenced, The Rebbe held of the Frierdiker Rebbe as the real Rebbe, and the Rebbe as merely his spokesman (because others couldn’t hear directly from him since yud Shvat), and thus The Rebbe still referred to him as Moshiach of the generation for many years”
In other words, he eventually decided to invent the concept of dor shevi’i so that it would fit himself… which is exactly what I said.