What this alert needs to say is something like this:
WARNING: you have moved this file out of Google Drive WHICH HAS DELETED IT. The file that you moved does not contain your content. It is merely a link back to the original content WHICH IS NOW IN THE TRASH. EMPTYING YOUR TRASH WILL PERMANENTLY DELETE THE DATA AND THE FILE WHICH YOU MOVED DOES NOT CONTAIN A COPY OF IT.
They're destroying the user's data in a scenario where they would not expect it. A teeny little warning buried in an alert filled with other stuff simply does not cut it.
The fact that you need lots of DIRE CAPITALIZED TEXT to get the point across shows, I think, that this whole system is a bad idea.