Corey Kennedy was well on a path to having a career without the Berrics - hence how he never relied on it after getting on Girl to do anything - and he would have had a career without the Berrics. He didn't even make it that far after that game with Ramondetta that everyone talked about. Benny Fairfax started his career before the Berrics and maybe BATB1 turned him pro, but that was a super different time in skating where Berra and his little pet projects weren't (rightfully) cordoned off into their own space driven by an egomaniac. Corey was in a similar position - he was already getting stuff before he entered that contest and his name winning that contest just sped up a trajectory he was already on and then never relied on to maintain.
Your definition of "a huge break" is insane by any understanding of the skate industry. It's bound to, essentially, "having more footage in Berrics stuff," which is the only metric by which Cody Cepeda entered the skate industry. His only board sponsor was through the Berrics and his only major part in an article was in The Skateboard Mag after Ththee Berrics bought them advertising a part he filmed for a Berrics project.