This is exactly the kind of design that creates overly complex software. It's design for the sake of purity rather pragmatism. Some guy like Roy Fielding proc

This is exactly the kind of design that creates overly complex software. It's design for the sake of purity rather pragmatism. Some guy like Roy Fielding proclaims the "right" way to do things and developers end up doing backflips to accept the dogma. Dropbox is correct in this case, and this would make a good interview question to see what kind of engineers you are about to hire and what the long term impact will be on your code base.