Sure, but the extent to which you bend the truth to get those impressive numbers is absolutely gotcha-able.
Showing a new screen by default to everyone who is using your main product flow and then claiming that everyone who is seeing it is a priori a "user" is absurd. And that is the only way they can get to 2 billion a month, by my estimation.
They could put a new yellow rectangle at the top of all google search results and claim that the product launch has reached 2 billion monthly users and is one of the fastest-growing products of all time. Clearly absurd, and the same math as what they are saying here. I'm claiming my hottake gotcha :)
This isnt a hottake at all. Marketing (iPhone keynotes, product launches) are about showing impressive numbers. It isnt a gotcha you think it is.