Comment by danieldk
I've heard people claim it was mostly so managed Windows laptops could force updates with the lid shut and the laptop suspended.
That, but probably also to compete with Mac's Power Nap feature (2012) that updates Mail, Messages, and other applications during sleep (so that when you open up the laptop messaging apps are immediately up to date):
https://www.engadget.com/2012-06-11-apple-introduces-power-n...
Apple managed to do it without setting your laptop on fire. Meanwhile Dell recommends you to switch off a laptop when you put it in your backpack:
https://www.dell.com/support/kbdoc/en-us/000124304/notebook-....
Hold on, Apple used the same intel chips as everyone else when Power Nap was introduced. In fact, it was implemented via S0ix state. It's just almost no one except Apple figured how to utilize it correctly.
Now i'm wondering if it's Apple fault that S3 got removed.