I think so, he understands hype, and is street smart enough to get a buzz going. You can't tell much from the video, but at #650 you'd see bounce and flex in a bar even with bad video. And if he really was putting up #650 like that, we'd know, there'd be tons of video, and he'd be making money from it, #650 would still best 99.999999999999% of the professional powerlifters in the world.
I think he probably got his hands on some technique bumper plates and mixed them in with the real ones. Technique bumpers would be easy to borrow from most MMA or Crossfit gyms. They're used to teach the Olympic lifts to smaller people, and are the size of a real #20/45 plate, but only #5-10lbs or #2.5 - 5kg on average.
Or Florida being a fitness town, I wouldn't be surprised if there are a lot of plastic prop plates around.
Technique plate -
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