California law says companies can’t punish customers who post negative reviews

Does this have any impact on Oracle's DeWitt clause[1]? I haven't seen it mentioned yet in the discussions on technical fora.

[1] https://en.wikipedia.org/wiki/David_DeWitt

Good start, but it cannot apply to a case involving two states. That would require a federal law. Then it wouldn't apply to a case involving two countries.

I want to see someone defend their having broken such a contract clause on the ground that it's unconscionable -- meaning the signer wouldn't have agreed to the no-disparagement clause if he had actually understood its meaning.