They absolutely are not, and Ford v. Dodge concerned the rights of shareholders, in particular minority shareholders, to not have the value of their positions intentionally devalued through actions of the corporation's management. In fact, in the first sentence of the very article you posted:
> At the same time, the case affirmed the business judgment rule, leaving Ford an extremely wide latitude about how to run the company.
As noted in the "Significance" section, value maximization is a legally-unprovable standard.