Jim,
I guess it depends on your definition. The one I labor under(lefty) says that a draw is a straight shot that falls to the right, a fade is a straight shot that falls to the left. Either of those shots can be 'talked' to in Trevino-ese.
The higher flighted shot is relatively important at Augusta, and a high fade or a high draw are going to react similarly (minus the direction of any roll-out) when they touch down.
I don't think anyone would say Jack's ball flight was any less-suited to Augusta than Phil's is.
With the old equipment, a left handed fader would've had a hard time acheiving the needed distance to conquer Augusta as a draw is a more powerful shot with a high spinning ball and clubhead.
Nowadays a fade can be hit much more powerfully with far less spin, thus the power fade is a common shot amongst bombers, where before it was a rarity possessed by only the strongest and best ballstrikers.
Today's hot equipment is much harder to draw and is the reason many players will use 3 wood to hook it, but a fade with a driver is slightly easier and still plenty hot to go a long way.
jack spent the weeks before Augusta prepping his ball flight for the needed draws at Augusta.