Obryn
Hero
It's not simpler than "you get better AC" though, which is (I think) the point.Plate still helps you against regular, every day damage by its incrementally better AC. But it's the pinnacle because of that one...little...thing. No crits. Let's petition for it. Let's make it happen. In core. It's simple. It's easy. It's the right. Thing. To do.
There is room for ideas like this if their bounded accuracy goal runs out of intermediate steps between 1 and Best, and they just can't afford to make plate better for fear of causing the system to collapse. But other than that, I don't think it's necessary.
-O