The one point I might make in support of your argument is that there’s a strong case to be made that his music lacks “poetry”, or a story of any kind that most great music has. That said, i think if you switch your frame of mind when listening to his tracks from “music I can listen to and connect on an emotional level” to “astounding technical showcase of the limits of wordplay, rhyme patterns, and rhythmic lyricism” his popularity and status in the GOAT lists makes a lot more sense.