So currently working on a Kobold sniper and I looked at what things could stack with the kobold's gunslinger archetype and saw Blatherskite, and at first I was like "Oh thats kinda cool." I said looking at the ability to hide.. but everything else was just terrible.
Its first level ability is "If you get missed by a ranged attack, you could jump in the way of the bullet instead to take damage and still provoke attacks of opportunity."
Yeah it does minimal damage, but I could take no damage instead.
Then the seventh level ability makes it so if you get hit by an affect, but pass the saving throw, you can instead let the affect hit you, so you can use an immediate action afterwards to give the enemy a loss to their dex. Yeah, I can pay a point of grit if I do get hit with one of those effects, but it still doesn't seem to be good enough.
What are you expecting? It replaces a bunch of rather weak deeds with a bunch of rather weak deeds. Archetypes are meant to be no better than the base class.
The only ability that's underwhelming is Batherskite's Stagger, and only because most of a weapons damage comes from the modifier rather than the die. The other abilities are flavorful and on par with the abilities they replace.
The Batherskite still gets all the best Gunslinger abilities, so it should be just as good as a normal Gunslinger.