It doesn't matter if Aaron's reply is not logical. He's "the man". Aaron also specifically stated "the 2" is directed towards a rest NOT a bipod." That's clear as day.
It's nonsense. An ftr rule can't be directed at a rest as opposed to a bipod.
It's not just wrong, it's impossible. There is no rest in ftr other than a bipod.
Plus, a statement prefixed with "it looks like" doesn't sound like a rock-solid ruling to be taken as a precedent.
fyi - I don't care what anybody uses. I'm just analyzing the text.