i cannot answer your questions. while i have listened to a speaker who had just returned from rojava, things are complicated enough (and changing fast enough) that it's hard for an outsider to say "what's going on."
also, i don't know what communal municipalism is, although there is probably some relationship to libertarian municipalism, which is a phrase of bookchin's, and is explained on wikipedia.
however i'm also hearing that the connection between bookchin's ideas and rojava has been overstated (when i hear more about this i'll let you know).