I always assumed blocking recording because two party consent states exist was an excuse to help big companies screw over individuals. For one thing, the phone has gps, for another it could start recording if it hears the “you are being recorded” tone. Also, why is this the only scenario where they block the mic and camera? Locker rooms are apparently fine.

Anyway, how many times have you been recorded on a phone call by some faceless corporation, then wished you had a copy of the recording after they “reviewed” it then came to the opposite conclusion the recording should support?

This is something I've never understood. If consent is remaining on the line after a message "this call may be recorded (for training and quality purposes)", the simple answer is in places where you have to have consent have the phone send a similar message.