Yes, users can go elsewhere to find the information. The records are on file in the metaphorical filing cabinet downstairs. But if the messaging you're putting front and center contradicts said records, their existence doesn't counter criticism of the messaging
Calls to action are kept intentionally short because the research on human psychology is clear: every additional sentence beyond the first few decreases the odds of a conversion (that's adspeak for "closing the deal").
But effectiveness doesn't imply ethicality, so "but it's effective" is not a defense against criticism of ethics.
Be careful, if you argue that your opinions are not wrong, you'll be admitting your comment here is wrong.