I assume this is just because it's something you have to manually intervene on - as soon as you have that feature, tons of intentional violators will submit fak

I assume this is just because it's something you have to manually intervene on - as soon as you have that feature, tons of intentional violators will submit faked documents claiming they do have rights, and those have to be verified somehow. I'm not saying that's a valid justification, but I imagine it's the thought process.