From the excellent link you provided:
“Hojjat al-Islam Mojtaba Zolnour, who is chairman of Iran’s parliamentary nuclear committee and a member of its national security and foreign affairs committee, made the allegations during an interview with the country’s Etemad newspaper, cited by the country’s Fars News agency.
He claimed it was done as a favor to senior Iranian officials linked to President Hassan Rouhani, and he alleged the move sparked a competition among Iranian officials over whose children would benefit from the scheme.”
Continued from the article:
“The conservative Zolnour, who is in Ayatollah Ali Khamenei’s inner circle, added: “It should be stated exactly which children of which authorities live in the United States and have received citizenship or residency.”
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He estimated that between 30 and 60 were studying in the U.S. while the rest of them were working in the country “against our national interests.”
Though Zolnour did not mention anyone by name during the interview, several children of current and former Iranian officials live in the United States, including Ali Fereydoun, whose father Hossein Fereydoun is the brother of and special aide to Rouhani; and Fatemeh Ardeshir Larijani, whose father Ali Larijani is speaker of parliament.”