One of the issues is how banishment are handled. It's actually one of those few things in the game where the turn junkies get the upper hand.
If the banishment option for infiltrators captured in low risk operations was tweaked so that the time the option appears is random(say, at some point during a 3-4 turn time frame, not tied to turn changes) you'd maybe get a chance or two to try and escape. Why random? Well, maybe it takes more time to actually investigate a low risk case and determine what actually happened and whether it's appropriate to banish the noble suspected of it.
