I have this same problem. I wish they would change the closure tab so that lower level editors could use it, and have their submissions reviewed.
The old way (using closure sheets in Google Docs) allowed any editor to submit an event. I’ve done it a number of times.
But this new way using the map editor means you can submit an event which will then be accepted, and then you can’t actually create any closures on that event. Very frustrating - I want to help, but I can’t. I don’t have time to find and do thousands of map edits to get my level up, but I CAN occasionally submit a major event.