It's a casual interview, not a dissertation. Beside the tone is the right one, crypto does a lot of damage to the planet and society for the benefit of a few already wealthy people, while pretending to be doing the opposite.
The rare events where their use doesn't involve crime are overwhelmed by the criminal uses.
Plenty of other things are wasteful by design, like military for example. The more military things we build, the stronger we'll be. Same with BTC hashrate, the more power the stronger the network.