If it had been any other trivial matter, the Special Affairs Bureau wouldn't have wasted so much manpower just for Rita, even if she had a dragon. But since Rita was doing something to benefit the country, the Bureau had to show their support.
Rita, on the other hand, didn't expect that other players had actually snuck into the dungeon yesterday. They were probably hiding somewhere in the vast terrain of the large dungeon, where it was impossible for Rita and Nivalis to monitor everything.
Regarding the Special Affairs Bureau's arrangements, Rita didn't act modest or decline. The consequence of being too polite was often endless compromise. She'd rather be criticized for being demanding or too proud than end up making concession after concession, only to find herself in a position she never wanted.
One day, you take a step back, and the next day, another step back, and before you know it, you're down on your knees.