The problem is that many of us tried to shut down this nonsense when it started, and thought it was gone for good because we didn't hear a peep for 2 years.
Don't get me wrong, I used to have a lark arguing with armchair physicists about whether or not FTL communication was even possible, in favor of yes, but I'd also turn around in that same conversation and shoot down any possibility of FTL communication existing in ED because everything about the game is built with the explicit concept of the technology not existing.
Even assuming that FTL communication was massively expensive, look at the value of information in a modern economy. Some information is literally, quantifiably priceless.
Those Mega-ships we just had a reveal on? Even if it took entire fleets of those things to enable an FTL communications network and that was their only purpose for existing they would be a bargain. Every faction would be manufacturing them in droves as a means of gaining information network superiority. Even with low bandwidth There is no evidence of FTL communications networks anywhere. Not in the game, not in Elite lore, nothing.
We started laying copper lines down on the ocean floors to enable trans-continental telegraphy in the 1850's. Can you imagine how expensive it was to put wires in between continents back then? Yet it was considered, and proven to be, a wise investment.
https://upload.wikimedia.org/wikipedia/commons/9/9a/1891_Telegraph_Lines.jpg
And low bandwidth doesn't mean slow communication either. Cryptography has come a long way. Algorithms allow us to compress information even when it's being delivered a single bit at a time. 1 bit transferred does not mean 1 bit of information received. With the correct algorithms it can translate to 10 bits of actual information or even 100.
Then you take and apply that to other existing technologies. There are an innumerable number of ways to automate the process even given current technological limitations, forgetting what practical applicable technology advancements would have naturally occurred over the next 1300 years.
There's just no way to reconcile FTL communication with the world of Elite as it is presented.