It was interesting in the sense the FQIS (or EIU) would need air/ground and engine run data for the TANK/ENG message. The X-FEED CONFIG message does actually show special logic gates which include air/ground logic input.
All that logic would be in the EIU - which already has air/ground, engine running, and several thousand other inputs readily available.
On the 777 and later, there was an effort to move the detailed message logic out of the EIU to the system responsible for the message - basically making EIU/EICAS just a 'light bulb'. On the early 747-400, there were lots of EICAS message logic errors, because the EICAS group didn't understand the message requirements as well as the source group - moving the logic to the system helped to reduce that problem. Obviously, there are lots of messages where the source system doesn't have all the necessary data so the EIU still has do some of the logic.