I feel like this whole event is pretty much already this shitty kingdom crumbling to pieces. Leaving the instigators to stew in their rot until they bumble around and try even worse shit next time. This was a full blown coup and dude's just like "Nah dude, it'll get worse if we try to fix it. Lets just wait it out and see what happens" If anything getting rid of the queen her top supporters would likely have caused the noble faction to loose all momentum.