Xiang Kun knew that Officer Wang and Officer Zhao's investigation into the "Eight-Armed, Eight-Eyed Monster" was merely a side task, conducted privately, and wasn't officially sanctioned.
Without traditional evidence, their investigation would be futile, even if the direction was correct. Moreover, their investigation direction was skewed to begin with. If necessary, Xiang Kun could even subtly influence their investigation through dream manipulation.
So he wasn't particularly concerned when they used the pretext of consulting on the training of a "Guide bird" to investigate Zhao's "Golden Flutter".