Well like you said the aristo’s will contribute troops no matter what. Still the ones committing the most additional troops on my runs have always been the priests. Didn’t matter though because as a secret theurge and even with Breden undermining combat-readiness, I can still beat them, albeit at the cost of half the forest.
It was hardly “terror”, we raided one paltry estate and ate some horses, big friggin deal. 
The “nobles” are just a bunch of whiny, petulant kids who got their proverbial (and literal) panties in a twist and are throwing a temper tantrum because my mc appropriated some of their toys for the glory of the revolution. 
All because my mc didn’t immediately subordinate himself to the Laconnier pretender like a good little serf.
They’re going to be facing a lot more disappointments during the course of the revolution though as this was only the beginning.