It certainly isn't grey area if this is the first registration with an RPAL. After registration of the first restricted, a second RPAL license card is sent out with revised conditions. Those revised conditions include taking it out for the range trip.

We don't have ATT papers anymore, they are said to be "attached" to the RPAL, but this is how they are attached, by expanded conditions and the completed registration of the firearm. I'd agree it is grey to us in terms of explaining it well, but that doesn't mean it is grey to the mechanics of the law.

To take another example, suppose you are getting a hunting license for something were there is a draw. You might learn you've won a spot from the completed draw by some online process or an email. You still need to wait for the license to be in your hands before you can hunt that game.