Kuroda was talking before that as well though and we can't actually tell when she started to stare at him like that, which means that we were technically both wrong.
And yet she did comprehend it during the case.
What?! Hahaha, Gin is willing to blow up an entire train and an entire train station just to kill one person among them (and that's not even the first time he intends to blow up an entire train), Gin directly murders persons in cold blood (Pisco, Akemi), Gin orders the death of Kogoro and Conan on the mere chance that Kogoro might be related to Sherry, Vermouth killed Jodie's parents in cold blood and burned down their house, intending to burn the 8 year old Jodie as well and more, and now Rumi is supposed to be the more dangerous person than these two alone combined, because she passively allows murder to occur and risks the life of one hostage? Sorry, but that's ridiculous.
On the rest: I disagree and I continue to find your logic baffling and unreasonable by quite a wide margin, but it's clear that this is going nowhere. I made my points and I stand by them and so do you, and that's fine.