Only issue is that they lost control over all the tradelanes outside of Liberty really. If any nation truely wanted to, they could create their own lanes by simply analysing the lanes etc in their space or even contacting the Lane Hackers who would of course want to help damage Ageira's profits.
Thing is though, why would you build a different design?
Different jumpgates and stations would be great since they both can logically be improved (and in game mechanics) but tradelanes could only be improved by upping the speed inside them. The issue with that is game mechanics, you can only change the speed of all tradelanes, not one or two specifically.
Of course, that's mainly speculation. All it took was one extra line in a single file to allow multiple cruise speeds for different engines, something people had wanted for years.
