Libertarian socialism as methodology

See this definition of libertarian socialism. It describes it as a methodological approach, since ideological ones tend to try to fit everything into its preferred model whether they fit or not. One example is Marx's "linear and inevitable historical progression." The same can be said for Wilber's ideologically fixated attachment to a linear and inevitable evolutionary progression, as well as the developmental model of hierarchical complexity. There are other forms of both development and complexity that do not adhere to this sort of teleology, like this as but one example.