By your definition, you can give your explorer a lift by getting out of it, right? I mean, when you get out, the front suspension goes higher, right? Isn't that a lift? Lose a few pounds, and you get even more lift! Hit a speed bump, and you get a lift on the truck, right? It's just short-lived, but it's still a lift, isn't it?
By cranking the torsion bars, you retain the stock geometry, and all the stock pivot points. You haven't lifted the truck, you've simply raised the front end of the truck. That's not the same thing as installing a lift kit or altering the suspension. It's simply increasing the preload on the torsion bars to make the front end sit higher (or to make the tires sit lower, however you want to look at it).