In reality, it’s the iPhone doing it, and it only does it when she looks at it.
Basically, the ad tries to show how the girl feels. I think it captures that pretty well; at least I liked it (more than most other recent Apple ads).
And am I the only one who finds it infuriating that the timing in other parts of the ad is off? At one point one of the cars bursts open before she looks at it. If you’re going to follow through on this concept, IMO it really needs to be frame-level precision.
The iMessage bug though just made me laugh.
QA, software development and UX is at an all time low for modern Apple. I've been an Apple product user for a long time while watching this decline. Yes bugs have always existed, but not as ubiquitously as now.