For mine, Burton at 5/8 is like when Barrett first put Walker there in 2016. The only difference is that Burton has a kicking game. He's not an organising half. He's not a play maker. IMO he's an out of position centre.
Last year when he played pivot for the Panthers at times, people raved about him, but I honestly never saw it. He was more benefitting from the very good and well drilled players around him than they benefitted from him. This year he doesn't have a dominant forward pack to play behind and has a backline that is basically reliant on the speed of Addo-Carr and Dufty for creativity.