And you seem to have misinterpreted my criticism
I didn't. Overconfidence was a short and apparent reason as to why the villain may have acted as she did. Akari was already on the altar surrounded by her underlings in a setting of her choosing. Menou's assistance was underground fighting a dragon. She doesn't think Menou has a rat's ass chance against her (see: overconfidence) so why bother pretending anymore.
At certain point, it will, but I don't think it has yet. :-)
Let me show you.
Because, what was the point of chapter 13, why was it in this story? First, we learn that the Princess is some kind of magical hacker who can trace magical cellphone jamming (which exists, just so) without any foreshadowing that she had ever specced into that build.
This is the second time we really met with the princess and the first time was a purely physical fight. What reason is there for any need of foreshadowing?
So this half of the chapter introduces a new problem (jamming) in addition to the one already introduced last chapter (dragon), then immediately pull a solution for it of nowhere without any progress made on the dragon issue, then caps it off with a cool action scene. That's amateur fanfic-level writing, at best, and lazy delaying tactic, at worst.
If the jamming wasn't there, you would be sitting here claiming it as another 'low IQ' oversight from the villain. The dragon haven't been dealt with because events from both places are happening at the same time and will likely conclude at the same time too or possibly even converge at some point. What's to complain about a cool action scene in an action fantasy manga?
See how I nitpick your nitpick? If you still don't see it as so, oh well.