the reason why you can't find anything might be because the word "blockchain" is not such a new word. it is simply literal explanation of what it is describing which is a "block-chain" or a "chain of blocks".


those articles are pointing out either one of two things. the fact that bitcoin is open source so anyone can use it, so many groups such as banks wanted to take the technology and create their own centralized version of it. and the other thing is that they are advertising altcoins by trying to say "experts" are moving to altcoins, it started last year with the purpose of pumping altcoins.