Imho this could be an option for companies that need private blockchains for their use, where decentralization is not necessary.
Why would any company need a slow and inefficient datastructure if they don't need the one advantage of it - decentralization ?
There are more efficient ways to store and validate data immutable. If decentralization is not needed, a blockchain would just be way too slow and inefficient.
I can not think of any good example of application which would require to have a (centralized) blockchain. Anything should be implementable with a different type of database/-structure.
Is there any particular use case you have in mind which
requires a blockchain without relying on decentralization at all ?