False prophets are plenty in crypto, especially when their bags are full and heavy. Fred Wilson has repeatedly supported centralized premined coins, and he was the one to claim that "the market cap of ethereum will bypass the market cap of bitcoin by the end of the year."

The first step in writing about decentralization is to understand what decentralizaiton means. Premined coins are centralized by desgin--the founders may hold an undisclosed amount of coins that were acquired at no cost. Thus, any fork that threatens the founders can be attacked crushing the incentives of the miners, and thus the security of the network.

Linking to websites such as https://arewedecentralizedyet.com/ is both lazy and meaningless because those metrics are easily gamed, insecure, vulnerable to sybil attacks, and unreliable. Most of the decentralization discussion is a red herring that many use either out of ignorance or in order to distract from fundamental problems such as the distribution of incentives.