Technology by definition makes some tasks easier at the expense of making some other tasks more difficult. A spoon will help you eat, but it won't help you play football. A gun will help you project power and kill, but you won't eat soup with it.

Similarly, the blockchain is a technology that makes it easier to a) burn through shit ton of electricity, b) propagate scams and get-rich-quick schemes. It doesn't seem to make easier any task that's worth doing and already not better done with another technology.