Like I said, I'm no expert, but Newton's 3rd law is that everything exerts and equal and opposite force. Therefor, the force of the canopy to the air (Fca) is equal to that of the air on the canopy (Fac), which yields Fca = Fac. These forces are coming from all different directions, so if it changes suddenly, the tension in the canopy and lines will change as well, which creates turbulance. The reference to the kite on the homepage seems trivial, but offers a perspective that we might remember from when we were younger. When that kite was flown in violent wind, it often shifted direction and velocity, which was a result from the quickly changing wind.
In the end, the only controllable factor is yourself, and you have the decision (once you're off student status) to risk those winds with your ability. Like I said, I'm no expert so either what I said is right, or as it was said in Billy Madison, "Everyone in this room is now dumber for having listened to it."