From the link:

In job postings and public statements over several years, SpaceX wrongly claimed that under federal regulations known as “export control laws,” SpaceX could hire only U.S. citizens and lawful permanent residents, sometimes referred to as “green card holders.” Export control laws impose no such hiring restrictions. Moreover, asylees’ and refugees’ permission to live and work in the United States does not expire, and they stand on equal footing with U.S. citizens and lawful permanent residents under export control laws. Under these laws, companies like SpaceX can hire asylees and refugees for the same positions they would hire U.S. citizens and lawful permanent residents. And once hired, asylees and refugees can access export-controlled information and materials without additional government approval, just like U.S. citizens and lawful permanent residents.