Yes.
There can be no logical strategy for an ideology that seeks to instantly abolish the state and jump to communism, because any logical strategy to reach communism will involve using state power. The successful Anarchist territories (Spain, Ukraine, Shinmin, etc) all had workers' states of some kind set up, even if their proponents deny this. An organised force to secure working class rule and oppress counter-revolutionary elements unquestionably existed in these territories. Same is true of the Paris Commune, the Zapatista territory, and all the other places Anarchists claim are awesome. So yes, they do have bad theory and bad practice, and the only times they have good practice is when they violate their theory, abandon Anarchism, and adopt statist socialism. No socialism without the state.