> While the law bans setting higher prices through surveillance pricing, it doesn’t address reducing prices. If a company raises its prices for everyone, and then offers individualized discounts, “suddenly you’ve arrived at the same outcome,” McBrien says.

While I agree with the intent of this law, I don't think it will be effective. If you have a system capable of jacking prices up you can just multiply this calculated delta by -1 transform that into a discount.

To effectively prevent this practice you probably need to ban any kind of personal discount. I don't think we will ever see such law, nor do I think this would be a good idea.