это прописано в законе

сам закон не найду, есть на сайте мигрейшена такое:
Duration of residence permit
Family members are granted a first residence permit of one year’s duration. The permit is renewable and cannot be valid beyond the date of expiry of the sponsor’s permit.
https://www.gov.cy/mip-md/en/documents/family-members-of-certain-third-country-nationals-that-are-legally-residing-in-cypurs-fr-family-reunification/