I would argue that human spotters are way better than CCTV. If a ride has, say, 10 CCTV cameras, the output from these will typically be displayed on one very large screen in "matrix format", i.e. the output from each camera is displayed very shrunk-down so all the cameras fit on one screen.
So are you telling me a ride operator [on not a lot more than the minimum wage] is monitoring all the CCTV camera output, whilst keeping an eye on goings on in the station, dispatching / feeding in trains, answering the phone [both internal normal phone & the ride intercom], managing the ride hosts / managing breaks etc? Come on! It does not happen.
I'm currently in Florida and noticed on Velocicoaster [excellent ride btw] there is a large CCTV video-wall in the Op Cabin with the output from each camera displayed in very large format. Said video-wall is behind the operator!