Thanks for joining in on the conversation and being totally insulting. Do you have anything to contribute, or do you just troll forums to see who you can disparage?
Had you continued to read the ongoing conversation, you would realize that a poster brought up the Archive file. And sorry if you don't like it, but if you interrupt any process mid-stream, you are taking a risk that things will be bungled up.
And, as one of the other posts stated, there was a warning indicating that the files would be deleted from the local drive.
A Time Machine backup is all that is needed to restore the information to your local drive. I didn't design the way iCloud Drive works, I didn't design the way that the Sierra set-up works. And, again, they are not "taken away". They are put into an Archive Folder. Probably before the upload is started. I don't know since I didn't turn on Desktop & Documents.
If you want to join in then have some respect for your fellow users. I did not insult anyone. I stated the facts in response to an inflammatory statement made by the original OP. Flaming is prohibited on this forum, so I would suggest that you might want to read the TOU before you post again.
GB