Parmigiano-Reggiano makers are putting edible microchips the size of a grain of sand into their 90-pound cheese wheels to combat counterfeiters::Italian Parmigiano-Reggiano makers are using microchips to verify the authenticity of their products and thwart scammers.
The cheese makers are not concerned about decentralization. Presumably they trust themselves, because they are the only ones trusted to write to the database. If they are the only ones allowed to put something on the chain, it’s a central database, regardless of how many computers/places they run it on.
Blockchain is not magically more secure than any other equivalent cryptographic solution.