That makes sense, as long as the articles format the same way on the sandboxes as on the main site. As Tuomey said above, one good reason to sandbox your work (even if you're not planning to show it to anyone before posting) is to see if it's formatted correctly, the images work and appear in the right size/place, etc.
If it looks right in the Sandbox, I want it to look right on the main site without having to fiddle with it trying to beat out complaints from early readers. You know how it goes: You post an SCP, someone comments 12 seconds later that your image is broken, and you have to go in and say "Hey, I was editing it while you were posting that."
(account deleted)