That is a great picture for hitting really far. To my eye, his power package looks good TGM-wise, but his club is moving up because of the extreme tilt., which is a good thing if you want to win long drive contests.
You might notice how much the tilt has changed from the top. It is much more dynamic to change the tilt in the downswing than to pre-set it at address.
But.....Jason does not have to hit his next shot off the ground like a golfer would.
As for how high they launch it. You might try to find some launch monitor numbers for the long drive guys. It is a big adjustment to actually see the ball when you are standing next to them, because it launches so high.