There are four layers to it.
Every clip is reviewed against your brief and your brand rules before it counts. Anything off-brief comes down and earns nothing, and the clipper is not paid for it either, so the network has the same interest in getting it right that you do.
Your embargo dates and your spoiler rules are campaign constraints, not guidelines. They are written into the brief every clipper works from, and enforced on what gets published. Anything outside the agreed window comes down and earns nothing. Where you require attribution or channel credit, it is part of the clip specification.
Comment sentiment is monitored, and a clip whose discussion turns against you comes down.
And you keep takedown authority at any time, over email or a shared Slack channel. A clip you flag comes down, and it is not invoiced.
This is standard practice for us and, as far as we can tell, unique in this market. If you are a rights holder, it is probably the reason you are still reading.