By his definition all of FAANG (or whatever) are total failures. You could poke minor semantic holes in their accomplishments!
CNBC lists bitcoin price next to the S&P. It's up infinity percent. There are regulated financial products. If asked at the time he would have unequivocally said those things would not have happened because bitcoin was going to fail because he was dead wrong.
It would have been much braver and more respectable to just say "yeah, I really was wrong on that one"