The second sentence of the post links to OPA as an example of a system using Datalog for authz.
Also, "X uses Y for Z" doesn't imply that Y is good at Z. It can be the start of an argument about how that choice is turning out for X, but it's in no way an argument by itself.
My assertion is glib, but your response is wholly insubstantive. Can you to point out how this piece treats Rego as an actual example of a real-world Datalog? I don't see any link when mentioning real-world Datalogs.
The fact that this piece makes no mention of it but provides a drive-by link to it suggests that the author is not actually interested in evaluating the problem in a realistic scenario. The piece the literary equivalent of a reminder that one can harm oneself with a gun without ever actually discussing how one should implement gun safety.
