I love how noobs with an agenda like to oversimplify things down to their level of analysis.
Yes, zcash is very centralized.
Yes, zcash has infinitely better privacy when shielded than anything possible wth bitcoin.
Both can be true, and indeed are in this case, but the "Cypherpunk" is such a self-masturbatory zealot that elementary logic fails him, because his dogmatic bias makes him a fanatic.
Anyone with the eyes to see, sees it. Except him.
A sad spectacle.