Whether or not Google truly 'lost data', any backup is only as good as the last verification done by the datas owner. Simply putting varying degrees of closed-

Whether or not Google truly 'lost data', any backup is only as good as the last verification done by the datas owner. Simply putting varying degrees of closed-source Syncing App in place long term, then expecting them to just keep working perfectly in all circumstances, through all possible future PEBKAC (either by the user or the corporation) - to the extent that they're reliable as a persons long term and only data backup - is a false expectation that the masses have bought into as part of the whole mobile/cloud world hype.