Using OR operator to execute command

I saw the plugin "WooCommerce" from WordPress is using the OR operator ( || ) to execute the exit command, below is the code:

defined( 'ABSPATH' ) || exit;

I understand that PHP is "lazy/short-circuit" and will not reach exit if the former is true. But I thought the boolean would always return a boolean value instead of being capable of executing a PHP command like exit? ( refer to the first user contributed note: https://www.php.net/manual/en/language.operators.logical.php )

I mean a||b both "a" and "b" are intended to be something to be tested, and not running a command like a|| // Do something?

Instead the below code is correct and understandable

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}