Presumably, they mean that they want windows to reopen after a controlled shutdown (when they likely quit and clean up applications before doing so); while they

Presumably, they mean that they want windows to reopen after a controlled shutdown (when they likely quit and clean up applications before doing so); while they don't want windows to reopen after an uncontrolled shutdown (when that results in dozens of windows reopening from 12 different apps, all at once, bringing the system to a crawl for 10+ minutes.)