My phone certain did not automatically download Songs of Innocence. For those users whose phones DID automatically download it, they must have enabled the "automatically add purchased content to this phone" feature.

According to my research, Apple has NEVER used the "kill switch", unlike Google: 'Google also possesses a remote "kill switch" for Android apps, but unlike Apple, it has made use of the feature before. In 2010 the Android security team deleted two apps created by a security researcher after they "misrepresented their purpose in order to encourage user downloads." Its kill switch is referred to by the company as the "Remote Application Removal Feature.' [1]

[1] http://www.businessinsider.com/brazil-orders-apple-to-use-ip...