For the populace actions:
I think an expansion of ways to get evidence on someone is needed to make the 'blame entourage' action work. If for instance a lord is gaining evidence (because he is enthralled for instance), maybe this trickles down to his/her entourage simply by association? That would make it a lot more viable course of action. Maybe also dependent on the liking for the lord, where an entourage member gains faster evidence if he is positive about the lord.
The blame peer option might need some refinement, if you rename it to 'blame ally' that would make more sense given the positive liking requirement. You could then make it that only people who have a positive liking of you/the ally will be angered. Why would the opposition dislike you for destroying your own alliance?