The thing is that it's only you who will know which is the file (or files) needed for the seed. It can be stored on USB sticks, or even better, on cloud, without anybody knowing what's that for. I find it a not-so-bad way to store your seed.
How is this better than just taking a picture of 12 seed words, and storing that on the cloud? It would be trivially easy to hash all hacked data to check if it returns a balance. At least a picture of 12 actual words will have some captcha qualities.