1. For scaling, the burden of proof lies on Lightning Network/ETH2/whatever they're calling them today to demonstrate that they can scale (how many years has it been now?), and he demolishes two widely proposed alternatives to PoW, namely proof of storage and proof of stake.

2. This is a rant, not an error.

3. I'm not sure what you're arguing here? His argument is that in practice, a tiny cartel of mining pools exerts central control over most cryptos, meaning they're not really decentralized at all.

4. There are a) way, way, way more DeFi hacks and exploits than TradFi ones, and b) consumers don't get wiped out when a bank gets robbed or hacked.

5. Omission != error

6. Ad hominem.