It took me a minute to understand as well. Apparently it’s a common scheme to enroll in “easy” college classes in order to stay in the USA. Some classes are me

It took me a minute to understand as well. Apparently it’s a common scheme to enroll in “easy” college classes in order to stay in the USA. Some classes are merely a front just to get immigration status and not to actually provide teaching. This was one of these fake schools, but set up by the government and apparently the students knew it offered no actual classes. So the students only enrolled in the school for the immigration status and not to actually attend schools, which is a violation.