It wasn't obvious you were talking about lost fumbles, since you just said fumbles. If you specify LOST fumbles, then yes, they tend to be worse field position. To be fair I didn't read your post, just the post that quoted a portion of what you said, so in that sense if there was something in the portion of your post which clarified lost fumbles that he didn't quote, my apologies.
I am neither for nor against either qb, but it's intellectually dishonest for you ignore the differences in personnel and the fact Cam hasn't been healthy the majority of the time when better teammates on his side of the ball were present. The first half of last season, when he had both his health AND better talent than he's had most of his career, showed a highly competent and effective qb leading his team to success. For someone who claims to have played and coached football for years, you would think this fairly basic information wouldn't be lost on you, but based on your post it seems to be.