[M4v3R]

Apple's response in the article explains it - so the user of multiple devices has the call log on all of them, so he can respond to calls on any device. Also, this helps when you set up a new phone.

[unethical_ban]

I feel like "sync" is an iCloud feature.

[huxley]

It is, but they are talking specifically about iCloud's backup feature being switched off, not iCloud itself. Syncing is not the same as backup.

[givinguflac]

Yup, this is exactly it. Even with backup turned off you can answers calls from your Mac/iPad... Why is this surprising?