This sounds more like a matter of which admins are given access to the !buildlog and !revert commands
Ummm, no. Revert simply does not exist in svn trunk, and it has been stated that it will not exist, and I would like to know why that is, and what problems revert faces.
While potential abuse could be considered a problem, I'd prefer to assume that we can at very least trust some admins (server owner, devs, etc.) not to abuse this. Personally I think any admin that would abuse this command simply shouldn't be an admin in the first place, but that's just me.