C172 After the Great Calamity
The celebration was a blessing in disguise.
Link wouldn't be happy, because from the moment he saved Hilda, he was already clear that he wouldn't be one of those people who died.
Xue'er and Lilisse were still alive, even those people he cared about, so there was no need for him to be too sad. He only felt a faint feeling of helplessness and sorrow