I personally have ambivalent feelings when it comes to Blockchain technology and it´s use cases. There are many reasons to consider it a hype and to believe that it may be beneficial for some niche aspects but is not a solution for the global transaction backends. Also there are very valid questions around crypto currencies and their relevance.
One thing for sure is clear: Both started a discussion and that alone is good and healthy. But the hype turns me off, really.
Now there was a good read in American Banker with the head-line „Does Blockchain Tech Solve Security Problems Or Cause New Ones?“. The article is worth reading. Nailed it.