Even in the 1990s, developers of the HID specification knew that the keyboard pictured at the bottom of the article was wrong. They wrote in the power management spec that interface devices should conditionally send wake events, and that a dedicated wake key was not necessary. Microsoft said:
"For example, a keyboard could include a special-purpose power management button (for example, “Power”) that, when pressed during a system sleeping state, generates a wake event. Alternatively, the button(s) on mice and other pointing devices could be used to trigger a wake event. "
The worst part of those stupid "power management keys" was that they were put in place where Print Screen, Scroll Lock, and Pause/Break keys used to be for years. And of course they had to put the most disruptive button, Power Off, precisely where the only useful one of those three old buttons, Print Screen, is expected to be. Thank you guys so much, I must have turned off my PC by accident at least fifteen times when I meant to take a screenshot.
Why the hell were those buttons needed to be on the keyboard anyway? I swear it started with one of those imaginary "my Ctrl key is hard to reach, so I hold the spacebar instead..." scenarios.