I work on data-centric system. It is fed by a large number of city and state governments, vendor companies and other commercial companies. Lovecraftian describes it well. It is often confusing and frustrating but I have to say that it does a great job of catching bad data and chucking those records to a fallout table where our data folks review and deal with anything the system is unsure about. But yes, I do understand that making changes to such systems can be very painful.
This sounds very plausible. The system they are using was probably built when there were three networks and it was easy to see if one was gaming the system too much. Now the number of networks is… out of hand.