COOP mode player leaves -> disaster

Currently, if a player in coop mode leaves, the ally is granted ownership of towers. But the current income and bonus +income generated by leaving player is not transferred. This just creates a situation of disaster and frustration for lone player. Some players just drop by loss of connection and this results in irrational loss of ally player of that team.

I suggest the current income points and +income bonus/round of leaving player should be added to remaining ally's resources.

I understand your point but we need to think about the upgoing game state.
Imagine if such thing was possible some people would prefer to dump his partner to have more inc then the other team and we saw in the past where both players had the same inc and people joined on a different account then leave.
The coop mode like the name says people need to cooperate to win if the player 1 of team A leaves the team A will be tragically affected.
And how could you illustrate the addition of the inc on the graphs?
There are always pros and cons but we need always to follow the idea that is more fair