The obvious difference is that AI has abundant use-cases, while Crypto only has tenuous ones.
Maybe there is added negativity considering it is a technology where there is clearly a potential threat to jobs on a personal level (e.g. lift operators were very negative towards automatic lifts).
I'm not worried about this on a personal level, but I'm very worried about the wider risk of too many people being put out of work too quickly. That's my biggest concern with these tools.