The fact that Bitcoin Cash can smooth sail hoping from one hard fork into another proves that the project is de-facto centralized. If it was not the case, there would be some dissidence and therefore their hardforks would result in a surviving chain as well as the forked chain (just like it happens whenever someone wants to hardfork Bitcoin.. all you get is an altcoin).

The only other possibility is that the project is irrelevantly small enough that consensus can be reached, but that is a short lived period in time. Bitcoin Cash's scaling roadmap will eventually face a problem of big % of people not wanting to increase blocks anymore once they feel the consequences of big blocks (if either actual usage starts filling blocks or someone bothers to spam the network to fill them up making hosting nodes a mess, just like Ethereum)