Haha, good points. Bancor doesn't solve all the problems, it does address some but you have to understand that all DEXs have their points of failure. Bancor, in fact, isn't completely centralized, but of course it is impossible to say that any DEX can truly be decentralized. You have to take the good points, accept some flaws, and go with it.
But for me, centralization that means that decisions can be made without the agreement of users, that is unacceptable.