Blockchain technology and Bitcoin are 2 related but different things....
Yes Bitcoin uses a blockchain *but* it is intended and designed to mainly be for monetary transactions - NOT general records keeping.
That said, there are many many real-world uses of blockchain technology that ARE used for records involving that involve tracking food production & distribution, various electronic device production, municipal lighting, long-haul trucking, etc. Publishing is just another variant of that. The key point here is that the blockchains used are tailored to a specific purpose and none of them have anything to do with BTC.
Why is bitcoin popular? Because of block chain technology. This technology can be used in any kind of application, like the banking sector, government departments, business, land departments etc. It can assure safety and security for any data. Whenever new technology is invented we should utilise the maximum possible way.