The author is anything but rational about crypto.
He actually is fanatically against it to the point where I'm thinking we can consider ourselves lucky he didn't chose to fixate on anything religion-related instead.
Which is not surprising if you read anything else he has written (like on FP stuff): the guy simply does not have the mechanisms/wires for nuanced opinions in his brain.
What would be interesting is figuring out the actual why he developed such a deep hatred of cryptos.
It's probably buried somewhere in the stuff he's been spewing over the years, but to find it, you'd have to read a lot of it, and my limit when I read his prose is around 5mn.
If anyone happens to land on the relevant nugget, please post it here.