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Would have been nice if they mentioned the quarter-turn metric, and hadn't said "moves" then, which in speedcubing almost always refers to face turns. Especially when the article they linked to was regarding face turns as well.

Both of course are mentioned at cube20.org ... http://www.cube20.org/

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They clearly refer to quarter-turn metric: “Finally, in 2014, it was shown that any valid cube can be optimally solved with at most 26 moves in the quarter-turn metric, or 20 moves in the half-turn metric [26, 25]. The quarter-turn metric treats 180 degree rotations as two moves, whereas the half-turn metric treats 180 degree rotations as one move. For the remainder of this paper we will be using the quarter-turn metric.”

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