We are in a quarterback friendly league now. This has nothing to do with Cam, but please don't compare stats accumulated the last few years for quarterbacks to those of years before.
The league is definitely more QB friendly, but don't act like every QB in the league is having 30 TDs year in and year out. Cam is having a solid young career, 40 TDs/29 INTs almost 8000 yards passing, and 22 TDs and almost 1500 yards running. Over his first two seasons he's averaged 31 total TDs and over 4000 total yards.