The info card you presented Anne doesn't say that Rheinland pays for the mainteance of the trade lane/gate network in Rheinland. It merely shows that Rheinland told IC to frack off over who owns them. Actually, all you've done is make it very clear as to why IC would take advantage of any possible way to recoup the loss that Rheinland forced them to swallow. Cause the government that stole from you to fall apart so you can then profit from the chaos? Corporate greed at its finest.
I'm rather looking forward to the outcome of this event, as it will enforce role play consequences on those who refuse to accept that their favorite factions have weaknesses which can be exploited.