Sorry to be blunt, but am I correct that this is a measure against tampering with servers by Chinese intelligence during the customs process? In that case, are

Sorry to be blunt, but am I correct that this is a measure against tampering with servers by Chinese intelligence during the customs process? In that case, are the CPUs themselves signed or could they be replaced after modifying the motherboard? Because otherwise it's really hard why the website would claim that every end user would be enthused about these lock-ins. Sort of weird statement.