Crimsonwood Keep Party Quest

In Test of Wit, there is a least one (someone confirm?) sigil that appears to be a thief sigil yet cannot be activated by any thief skill, but rather a normal attack like many other reactors.

In Thief Mastery Room, there's a spot that cannot be cleared with a normal hasted jump and must be cleared with a flash jump, so chief bandits and shadowers are unable to clear the room. The spot is circled in red below.

As far as the Test of Wit stage, there's an intended fake sigil (as posted above) that anyone can activate.

I'm fairly sure the Thief Mastery Room was intended to be done by Hermits/NLs anyway, as if you look to the far right side towards the top, there's a huge gap that can only be cleared by Flash Jump.