Hwang Woo-suk applies for restoration of Korean nationality

It has been reported that he applied for the restoration of his Korean nationality on the same day he acquired UAE nationality.
It appears he applied because dual citizenship is permitted once one is over 65.
Setting that aside, why is the process handled in such a complicated manner?
[Exclusive Interview] Hwang Woo-suk: "I have applied to the Ministry of Justice for the restoration of Korean nationality" Daum | Asia Economy. Former Seoul National University professor Hwang Woo-suk, who lost his Korean nationality after acquiring United Arab Emirates (UAE) nationality on April 9, stated in an interview with Asia Economy on the 9th, "I have applied for the restoration of my Korean nationality and am awaiting the results of the Ministry of Justice's review." "On the day I was granted UAE nationality, I notified the UAE Korean Embassy and reported the loss of my nationality, and subsequently applied for the restoration of my Korean nationality following guidance from the embassy."