It's semantics really isn't it. The people using the system are part of the system and the system can't function without them. If any part of the system isn't working then the whole doesn't work. If any one out of the audio links, the cameras, the monitors or the humans working the equipment fails then the whole system fails. The only part of the system that keeps malfunctioning is the human.
True. But there is nothing wrong with the technology. A computer or screen didn't decide Vini Junior was outside the box or that Robbo was interfering with play

) but I think there are two conversations; some want rid of VAR, others (maybe just me) would like to see competent individuals operating the perfectly adequate technology available.