Why can't the AI attack more than once a turn?

So I really do enjoy GCIII  but there is one major limitation of the current AI... and that is that they can only attack once per turn per fleet.

So if they have a huge fleet that has transports, I can indefinitely prevent my world from being taken by one of several things..

A.  Fighters  Once you have fighters it becomes a minimum 2 attack conquest proposition.

B.  moving cheap ships in every turn.


The adjustments for sensors and engines helped limit this exploit a lot..

but it still means that the AI is currently literally incapable of actually winning the game.


So.... why can't they attack more than once?


and When will this be changed?

Thanks!