No it isn't.

In my opinion I actually appreciate them depicting what happens when your whole ideology can be summed up as "smash the apparatus of state and do retributive violence against the oppressors and people who hurt us personally" with no "and..." at the end that describes coherently within an intellectually sound framework what you do beyond that to survive in a dire situation.

Sounds a lot like certain idealistic people who think people will just get along and you'll have a nice functioning healthy society once you remove the bad authority structure. Made only worse given their precarious situation against an awful horde of zombie monsters, isolation, lack of resources, and threats from other groups of people. The lady in charge of it all (and behind it all) wasn't an organizer, a revolutionary, or an intellectual, she was just some vindictive, injured person personally aggrieved at the death of a relative who had some (probably liberal) ideals and ideas as a (again liberal) revolutionary and who might had they led the uprising actually been able to build a more productive and solid society that isn't just raiders with a base who ambush and murder travelers for goods and waste all their time and energy and resources vindictively seeking out to murder the people who betrayed their leader when they had other very pressing concerns. And the whole back-story from what I can tell is spontaneous (and probably opportunistic) uprising after a catalyzing event of abuse (possibly her father's murder) that was a metaphorical straw that broke the people's back and caused them to act out with enough of them having smuggled arms and some basic organization to carry that out successfully against a probably already demoralized occupying force.

What they showed is exactly what CAN happen. In fact it did happen in Russia with Makhno and has happened in many other places and times. This is why a vanguard party is critical. This is why you need to be able to organize people under a coherent scientific ideology, stable leadership, to settle things down, bring control after the revolutionary violence is over and indeed to reign in the worst excesses of such violence even during that period.

And consequently what I would expect in fact to happen in the US in just such a situation as depicted in the show as it is such an American-brained thing to do. We are talking about a people steeped in reactionary superstructure, magical thinking, idealism, individualism as religion, and violence as a fetish.

As any good communist revolutionary will tell you, a successful revolution under siege conditions (as they very much were under) is only the very first step, it is in fact the beginning of the real work and the hard times.