Will take a look now, hang on! Hm, after reviewing, my thoughts are this:
It could be griefing or it could be him thinking no one else is going up there, so we're going to put the prop downstairs to help block the door. I'll ask the team.
EDIT:
After further discussion with the team/SPA, we don't think he had any malicious intent in doing this. Therfore the request will be denied. Thanks for your report!