He just says there are some good technologies used, those are Merkle trees, cryptographic hash functions, public/private key infrastructure, the hashcash idea to guard against DoS attacks, etc., all this stuff predates the bitcoin white paper, and note how Bill himself says “talked about as blockchain”.
Also, from an economic/game theory perspective the bitcoin idea is very interesting, but also flawed because of some unfortunate couplings, like how it must be more expensive to attack the network than the potential reward you get from attacking it, which is what leads to this huge cost of performing the transactions.
For the smart blockchains (like Ethereum) you also have some unfortunate couplings, like how miners can front-run people. In bitcoin this doesn’t matter, but when you start to build decentralized exchanges on the blockchain, you start to see that miners (or bots) will scan pending transactions for potential arbitrage possibilities and simply “steal” this opportunity by (for miners) front-running the user, and for bots, post a transaction and offer the miner a higher fee.
So nice try appealing to authority, but Bill does not say what you think he said.
Also, still waiting for you to reply to my question about whether a “private blockchain” needs a consensus algorithm.