Audience of the Great Comedy
Terror is the reasonable reaction to the what Misao is, and as you explore her character further...As it was discussed on the Discord, there are two possibilities to consider when you witness a scene like the one with the publication. Either the author did not think about the full implications of what he wrote and you roll your eyes at some TV series writing by ignorant scriptwriters or the author did think about these and you are terrified.
I am terrified of Misao because I have a slight understanding of what this little show-off scene means, and this more than anything else shown previously with her or any other character, puts her right at the top of the pecking order in my threat list. High enough that the only reasonable answer is to be nice without overdoing it. Nice and honest with such a being is the likeliest route to endured healthy survival.
The terror is supposed to grow.