Watch closely as Maia and Alex Shibutani execute their first twizzle set starting at about 2:13 (embed should begin at the designated time) -- and count along with Perez Prado:
Why does this work? Because it's intricately interwoven with their skill at the element; a fail on the twizzles is a fail for the fun gambit. Sufficiently believing that they can execute is also a bold acknowledgment of their ability on something with which many another team has struggled. (In its sensitive timing, it's not unlike the twizzle passage in Virtue and Moir's Carmen, which required a to-the-millisecond finish to work dramatically -- one they consistently nailed.)
Far from a cheap trick to illustrate a lyric, this is clever play with high-level difficulty, and a great show of confidence.