Is it just me or did the writers kill of way to many good charachters

Ive been thinking about everything after a 5th watch through and i understand how the stories needed to progress but i thought I would have loved to see more characters interact with each other and have more fulfilling episodes and endings

Like i would have loved to see Lacernia and lois have an episode were they become friends to take down francis

I would have loved to see a bit more of the cult from the military areas

We barely even saw dewey at school too those episodes could have been cool

Has anyone got any other ideas of episodes that could have happened and would have been cool ?