Top of what? Not the game. The DCC "just" took place and Archer skipped out of competing in the Bigfoot against the best in the world, he played in one event, 9-ball, did marginally well, and that was it. You compare the commitment that Archer put into the DCC to someone like Efren, Busty, Feijen, Appleton, SVB, or countless other players and he clearly does not make the grade.
If Archer ever wanted to get back to the top of the game again (which I think he might still have the ability to do) he needs to focus solely on professional pool, play ALL of the world events, practice constantly, and commit to the game and being a professional pool player and that alone rather then doing his APB stuff and playing a casual part time list of events.
Archer has not played true full time professional pool in many years and I see nothing that suggests that is going to change any time soon.