If you are Apple, even though EARN IT failed... you know where Washington's heart lies. Is CSAM scanning a "better alternative", a concession, an appeasement, a lesser evil, in the hope this prevents EARN IT from coming back?
Also, many people forgot about the Lawful Access to Encrypted Data Act of 2020, or LAED, which would unilaterally banned E2E encryption in entirety and required that all devices featuring encryption must be unlockable by the manufacturer. That also was on the table.