Cruz was not a minority, "statistically" or otherwise.
Nor is the policy you refer to specific to "minority students", but applies to all students.
Cruz is Hispanic according to the Miami Herald. And yes it applies to all students but it was proposed by Jesse Jackson and NAACP worked to bring it about. He blamed Trayvon's suspension from school as leading to his death. Also Holder wanted to stop the school pipeline to prison phenomena by implementing these policies.
"Jackson also said Martin's case illustrated the high number of black students who are suspended from school. A report issued by the U.S.
Department of Education last month found that black students are more than three times as likely as their white peers to be suspended or expelled. Martin had been suspended from school for having a baggie that contained marijuana residue shortly before he was killed.
"We must stop suspending our children," Jackson said, asking the crowd to repeat: "Invest in them. Educate them."
Trayvon Martin Rally in Miami Draws Thousands