I'm not sure what you're talking about. This isn't something new, Cam hasn't had much help his entire career in Carolina. The offense was placed on his back from day one, and he's not been given any help since. The offense has regressed since his second year when Shockey wasn't resigned.
The offense has actually relied less on Cam each year he's been here. 643 attempts passing/running rookie year, 612 in 2012, and 584 in 2013.