This might be farfetched and not too good but…
Because of the economy change, long distance is a bad choice for profitability. But most connections are long distance!
To further create an incentive to do them, especially when helping others and you have already gotten the 2 GP + the achieve, idea is if there could be added a % of more earning to flights going within an active connection.
Lets say BRI-NGO B787 earns… oh just guessing dont remember, 8 k? Well, maybe… 25%? Could be applied to your planes when sending to your connection partner. So in that case it would total to 10,000
Rates added and so on can be adjusted ofcourse, its just a t