I don't know ! Maybe it's a question of costs . By order the rooms for the tournaments every member association can choose single or twin rooms for the players and the officials. In times of Corona it would have been a good choice to take a double room for a double and a single room for a single player.I hope the Indian player doesn't get more sick. It is also very bad for Kidambi, as he will also lose his place in the World Tour Final.