The only problem with this is they are not getting involved in blockchain. For the most part, these companies are just using the term and, perhaps, some of the data structure. But make no mistake, these are not blockchains. This is selling snake oil.
I looked it up a few different places to make sure, but the definition of blockchain does not fit what they are doing.
https://en.wikipedia.org/wiki/Blockchain
https://www.merriam-webster.com/dictionary/blockchain
https://techterms.com/definition/blockchain
There is a key word in the definition: decentralization.
These companies are not setting up decentralized blockchains....they effectively are just putting together shared databases that they (or their cohorts) control. Some like Microsoft are doing some work on Ethereum but for the most part, they are using in house server structures.
This removes the benefit of elimination of 3rd party risk and, perhaps, even immutability.