he doesn't criticize bitcoin though and in fact he doesn't really talk about bitcoin. in the interviews the interviewer asks him about bitcoin and he basically says "i don't understand it". then the news sites go ape shit over it!
there is a couple of reasons for what he says too. first is that he doesn't want to see any capital leave the markets he is in and basically owns some of them and go into bitcoin and secondly he is an ancient dude who thinks only things he can touch can have value.