Words like security and decentralization are indeed not binary, but referring to them as being on "a continuum" or something similar is not particularly helpful either. I wish I saw more application of them as modalities, such that they refer to not to a perpetual state but a systemic tendency toward an ideal (if asymptotic) structural equilibrium over time, as in "X tends toward greater decentralization", "tends towards greater security" over time.

Even better if these claims could be backed, if not by a formal proof, at least an informal definition of these terms as used in the claim and reasonable justification as to why the models being promoted would not tend to collapse into greater centralization, weaker security over time.