Not to be all "both sides tho," but I think you're both right. I code on blockchain stuff from time to time, and it's both really awesome for the decentralized no-trust part and straight-up nonsense for entire categories of problems that would be better solved off-chain. The hype machine is crazy and driving things toward the blockchain that absolutely don't belong there. ("Uh, do you need a blockchain, or do you just need to cryptographically sign something, and you've never thought about cryptography before today?") There are still some very interesting untapped possibilities that aren't better-served by any centralized system yet.