the blockchain problem ...
is that you *can't* control it. Not if you want it it work as a blockchain.
This is a problem, because a lot of boards of directors don't understand how co-operation works. All they know is that they are being asked to spend money on something they can't "own".
When they've died or retired, we could see a bigger uptake of the idea.
Bear in mind, the advantages of a blockchain - immutable proof of transactions available to anyone who has a stake (nice shout upthread) - aren't appealing to all, as it makes it impossible to retrospectively change what happened. Which is a staple of modern accounting and politics.