Not that long ago it seemed that blockchain was everywhere. The hype of blockchain as a cure-all was quite prevalent, including a commentary in the Wall Street Journal commenting how blockhain can end poverty. See article.
However, it seems that much of the hype has died for the moment as practitioners find ways to utilize blockchain when it makes the most sense, rather than implementing blockchain for the sake of using blockchain.
A recent podcast with the Journal of Accountancy discusses where the accounting industry is at this time for using blockchain. To view the article and associated podcast, go to: https://www.journalofaccountancy.com/podcast/blockchain-accounting.html
In my opinion, the use of blockchain was over hyped at first. Now that the dust has settled, accountants can find ways to use it to increase reliability of transactions and speed up some processing.