Oh man, this sounds so awesome. Seriously, every single thing you mention here is something I love to find in my reading material. And I'm particularly excited about the twist on the "blunt protagonist in a twisty situation" trope. You're right--instances where their inability/unwillingness to guard their words and look behind people's motivations actually lead them into trouble, as opposed to gaining them respect, are few and far between. (In fact, the only other example I can think of is from Scott Lynch's series, though I'm sure there are more.)