Those zombies kind of got the shit end of the stick, right? (spoilers)

I mean, they had a bit of a peace agreement there at the beginning...
Then the dude broke it by killing the queen, which pissed off the lead zombie guy (and rightfully so), and as a final fuck you, the coyote drops her head from the top of the building there.

So from the zombie's perspective, these people are just outright sonsabitches who broke a deal, murdered the wife zombie, oh wait she's alive still omg, no fuck you, she's dead haha that's what you get for being pissed about us fucking you over.

What was the point of smashing her head like that? I couldn't help it, I kinda felt bad for the main zombie guy.