I really don't think this has to do with marked cards. As the manager points out, the burn card is there for a reason. Knowing all your opponents holdings/foldings won't help either. I mean, who gets into a 80/20 scenario as the underdog? Plus its unreasonable to think they they are reading every card at the table. Player at seat 1 isn't in a position to read seat 8/9s (don't know how many players they sit) cards, and player in seat 6 can't signal player 1 every single card without looking like this...
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I mean, at some point Anthony would just get up and run. When asked why, he would reply "Cuban #2 told me to steal".