OP, those "industries" in that blog need a database, not a blockchain. When someone says, "We will build a blockchain for scalability, and speed", it's usually a database. They will tell you, "It's decentralized", but it's not trust-minimized.
A real blockchain utilizes POW to come to consensus, but it's slow, and not scalable.
I agree with you. I don't even like projects that work with POS integration using the name Blockchain. Imagine you're making a vital change to one of your most important issues and trying to stay in the same place. I'm having trouble understanding this.
For example, IOTA uses a different structure and its name is Tangle. I think they should have found a different name in their POS projects.