I mean, that also applies to the Spanish anarchists as well, who employed labor camps and had some degree of hierarchical structure. At the end of the day, anarchists do have to make compromises with what authority they consider valid and what they don't. I'd say the Spanish anarchists had their own "state" as well, and this applies to all anarchism in historical example. There's a difference between the idealized, perfect anarchism, and the anarchism forced to reconcile the need for some hierarchy, especially when defending itself from outside forces.

Ultimately, while they reject the label of anarchist, the Zapatistas do have a fairly horizontalist approach, which is why I said they can be considered when discussing anarchist-adjacent structures, their merits, and any problems they may run into.