This article makes a good point about the fragility of DeFi, but it fails to demonstrate that the broader Ethereum community cares enough about DeFi to let it influence their decisions. It makes a general, hand-wavey gesture to other parts of ETH ("All websites, interfaces, block explorers, and wallets ultimately point to the majority chain. Game operators like CryptoKitties lock their D-ETH contracts so as not to confuse their users."), but it fails to justify this point—it already says "a civil war is brewing" and that individual developers (presumably including CryptoKitties) would have reason to support one or the other.

So while this article is a (good?) argument for why all DeFi operators must follow USDC, it fails to make the case for why anyone else should care about the fate of centralized stablecoins. Maybe these reasons are obvious! But I don't know them.