Take a look at this clip of Shiffrin. In just 30 seconds (from 14 seconds to 44) and 2 turns, she lays out all that has been discussed above.
At 14 sec. she begins a classic ILE transition, releasing the outside ski using a forward inside leg extension onto the old inside ski (continuing the turn) and actively moving her old outside ski and hips forward. But because of the dynamics/intensity/reaction to the moment, ILE is halted in favor of a float, lifting of the outside shoulder and increasing angulation (17 sec) as
@Steve and
@geepers points out.
The 2nd turn out to 44sec is classic retraction.
@Prosper when it comes to cross over/under I believe it is dependent on ski contact with the ground. If the skis are floating in transition, they are usually being directed under the torso. If the edges remain in solid contact with the surface during transition, then the torso needs to cross over the skis. I think dynamics and intensity of the turn play more of a dictatorial role than technique when it comes to X over/under.
To this point, because Shiffrin exited ILE for a float condition we can debate if this turn resulted in a cross over or cross under. The reality is that it doesn't matter, she most likely won.