Commercials are on their face a work of fiction unless stated otherwise — for customer testimonials in commercials that are fake (in the US anyway) there has to be text saying as much. Because otherwise they’d be lying…
They are a staged conversation with a contact named "Speedometer FAQ" - not pretending like it's with a real person, or real customer testimonials.
If it makes you feel better, you could put "simulated text messages" at the bottom of such images.
It’s like saying “it’s ok to call the car ‘full self driving’ because one could figure out it’s not really full self driving.” But obviously, not everyone will realize that and you’re benefitting from the deception otherwise you wouldn’t have done it.