What's the source of this article?
Does "line up and wait" really work better than the ages-old "position and hold?" Is there NTSB data to show that?
I guess it's more to align with everywhere else in the world (ICAO phraseology)...
Although I don't exactly see how pilots from countries which use the slightly more complicated multiple aircraft conditional line up clearances (something like "on taxiway Alpha1, behind the heavy Airbus 330 on short final, line up" which would be in front of another plane also holding in position) could get into a runway incursion simply misunderstanding "position and hold". I must admit, p/h does sound cooler, lol...