Are you guys considered a lawful US resident? Are you sure? I know it doesn't say Permanent Resident, but most other credit cards only ask that you are a US resident, defined as having lived here for 3 years so the fact that it mentions lawful, it kind of sounds like it's asking for green card holders to me. Is lawful presence the same as lawful resident?

I know Apple folks go out of their way for a little bit of vanity that owning something from apple makes them think it provides to them but it'd be a silly way to accidentally lie about your legal status just to get a card that scratches easily and doesn't really benefit you anymore than any other card.