Author Neil Gaiman describes how he felt about seeing the allegory in The Chronicles of Narnia.
My upset was, I think, that it made less of Narnia for me, it made it less interesting a thing, less interesting a place. Still, the lessons of Narnia sank deep. Aslan telling the Tash worshippers that the prayers he had given to Tash were actually prayers to Him was something I believed then, and ultimately still believe.
To be fair, Gaiman’s world is … a little different from that of Lewis.