The article is about being unfamiliar with a car after 5 minutes. If the button was a physical button you’d still have to look for it since you are still unfamiliar with the car.
Before downvoting, ask yourself:
* “Would this article exist if the person found the button within 5 minutes?”
* “Would this article exist if the person was familiar with the car?”
That's not the point of the article, but we'll take a corollary of your statement.
Imagine a physical button for the demister that's hidden behind a temperature display LCD that hinges down.
There's no indication that the temperature display moves or reveals anything, no affordances, other than on a statement on page 3-11-A of the vehicle manual. Would it be acceptable to be confused in that instance even after many five-minute periods?
> This is one reason why hard-buttons are so effective in old-school cars. They all use these same standard icons so it’s easier for new users to scan across them and find the one you want without any training.
The article is about being unfamiliar with a car after 5 minutes. If the button was a physical button you’d still have to look for it since you are still unfamiliar with the car.
Before downvoting, ask yourself:
* “Would this article exist if the person found the button within 5 minutes?”
* “Would this article exist if the person was familiar with the car?”