Totally agree with your comment, there are several images like this and that note should've been in one of the captions.
On a separate note, even Steve faked the 2007 iPhone demo [1]. It couldn't play entire songs or videos without crashing. It constantly crashed unless tasks were performed in a specific sequence. The team programmed the phone to display five bars, and brought in a portable cell tower, for the demo.
When the iPhone came out, all these bugs had been smoothed over, and the news of the demo didn't break until 2013. I guess that's the difference—people were using the iPhone, loving the screen and interface, and tolerating the flaws (no copy and paste!).
[1] https://www.nytimes.com/2013/10/06/magazine/and-then-steve-s...