I could be completely off the mark, but in my opinion his issue is that he thinks he can become the GOAT only if he becomes KD 2.0 on offense. Something unprecedented and never seen before. And that's unlikely to happen.
In reality, what we need him to do and what can get him into GOAT conversations is becoming modern Admiral 2.0 with a deadly 3pt shot.
Lob, dunk, mid-range mismatch exploit, 3pt shot and the greatest defender ever.
With our guards we really don't want to waste possessions on his iso ball.