I thought of something else. You have to register all sim cards, right? And you have to give your IMEI number as well. But many people have more than one sim per phone/datacard - so can you register a sim without an IMEI? Can you register more than one sim per IMEI? Or are you now only allowed to have one sim per device?
None of those options make any sense, either here in the real world or in terms of what they're trying to accomplish.