Can LaCie Fuel storage be used for backups?

On the Apple website it says that the LaCie Fuel 1TB storage is Time Machine compatible ... which means I can use it for backups. On the instructions that come with the device it explicitly says " Do not use for backups". Which statement is correct? What am I missing?

LaCie Fuel 1TB Wireless Storage with Wi-Fi and USB 3.0

LaCie Fuel 1TB Wireless Storage with Wi-Fi and USB 3.0

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