This eunuch's status was not high, but he was one of those who accompanied the emperor on his discreet outing to Chang Garden. He roughly understood the situation that day and knew that the Wong Residence was merely related to the Zhou family by marriage; it was incidentally caught up in this affair, so naturally, he would not offer much courtesy to Lady Zhao, a mere common woman.
Handling errands for the court naturally required reporting to the head of the household, even if the head was a younger generation.
The Imperial Astronomical Observatory officials saw that the eunuch took initiative and naturally understood. The observatory was helping choose a wedding date for the Wong and Zhou families mainly for the Zhou family. They came to the Wong Residence only because they were the Zhou Second Miss's husband's family. Thus, they followed the eunuch's lead, said little, and simply sipped the tea bit by bit.