It should be noted that in henne's 1st 4 games the dolphins scored over 30 points in each game. It was a feat that had not been accomplished since the Marino era.
Correlation is not causality, that includes a game where Ted Ginn returned two kickoffs for TD's, a game where Henne completed 50 percent of his passes and threw for no TD's and two picks en route to a collapse, one pretty good game that still saw much of the grunt work done by the wildcat (like the game winning TD), and a game where the rushing yards more than doubled the amount of passing yards, with three TD's coming on the ground, plus a defensive TD. Compared to almost every other 4 game span, dramatically little came from the passing game.
I've already explained in my previous posts the difference between the two and why this limited view is not correct. The offensive output of Tannehill's offense will be significantly higher over a 16 game stretch, and Tannehill is also doing this while getting sporadic production from his running backs and no scoring plays from ST or defense.