I don't think Cates really has the same mannerisms as Dwan, the only things he does similarly is looks up alot and has a few short bursts of really quick speech. Apart from those he seems pretty normal and I'd say it's at least somewhat likely both mannerisms are results of just not knowing how to act on camera.
Btw is he out? Didn't see any posts or updates saying he lost but I also didn't spot him in the day 3 lineup
edit: nvm must have lost to Lederer
edit 2: scott palmer is urnotindanger2 right? didn't seem to get any attention ITT