If something isnt a challenging roll, I assume the QM doesnt bother.But we haven't checked it yet. I don't think we can be sure that it's compromised based on a couple of words. We need to actually make the roll.
We dont roll for balance routinely, only when there's a chance of failure.
Hellscry Chakra looks at the aura of the target.That's really good but what would she be perceiving here? Some signs would be really obvious but if it's something subtle like the Merlin getting a change of mindset after using the Outside to maybe better defend himself is that something Molly could notice just by looking?
If some diabolical force has performed soul surgery or mind alteration on the Merlin, you'd expect it to ping Molly's senses immediately, especially since there's been no time for magics to hide such shit
Besides, I suspect that someone who has walked the Labyrinth and succumbed already counts as a Creature of Darkness.