You left out the case of storing data for offline use, which is one of the key use of Instapaper, offline maps, cached notebooks, etc.
If I stored something specifically for offline use, I want it to be available as long as my device is with me, even when I'm offline. (1) Some of it is important as you say, and they should be backed-up, but (2) some are important, but is capable of being downloaded again and shouldn't be backed up and shouldn't'. The latter is the one that is now automatically cleaned up.
If I stored something specifically for offline use, I want it to be available as long as my device is with me, even when I'm offline. (1) Some of it is important as you say, and they should be backed-up, but (2) some are important, but is capable of being downloaded again and shouldn't be backed up and shouldn't'. The latter is the one that is now automatically cleaned up.