The thing is, they have to be licensed in a United States jurisdiction. No US jurisdiction requires less than a year of training (except the USVI iirc, I think it's 6 months there). Florida even allows for full licenses after one year of training for US MDs/DOs, and few states allow practice for IMGs after only one year. My bet is most of these people could get a license anyway, I'm kind of curious as to why they didn't. Most likely because the temp license allows medicaid billing, which might not be doable as a GP, but hard to say.
Also the lawyer claiming they don't understaffed the reason some of these licenses are granted its ridiculous, they're HPSA sites. It's really straightforward