[Tobalaz]

You've got to know the history of football if you want to understand the roots of the wildcat.
The wildcat was technically the second offense ran, back in the day the players lined up in a V formation and didn't pass the ball, so this was really a direct snap to the running back.
The game soon evolved allowing for forward passes with a penalty of 15 yards for an incompletion, this is basically what we call the wildcat today.
As time moved on the 15 yard penalty for an incompletion of the forward pass was removed because the passing game was more entertaining than the line up and run the ball every play offense that was commonplace. There was potential, so the game started then and there to evolve into a passing league.
Fans loved the forward pass so the NFL started gearing the rules to favor the pass, resulting in more and more complicated offenses evolving which in turn called on a specific skill set for a qb (more focused on his ability to read the field and pass over his mobility, which was the prime requisite at the time), which was, at the time, the death kneel (or so we thought) for the wildcat.
We saw the birth of the west coast offense, here in Ohio (short passes, mobile qb), which in turn lead to the development of more and more complicated offenses, most of which didn't require a mobile qb.
.....
Which brings up back to the birth (or should we say rebirth?) of the wildcat.
Miami didn't have a qb that could throw the ball, so why not go old school?
Let the rb take the snap, make a forward pass every now and then. Run heavy, pass light, like I said, old school.
It worked then, it works now, it'll come and go but it's going to be a part of the game for a long time.