It's a shame, by the way. I ran a game with the Grenade rule from Run&Gun and it had a significant impact on tactics. Enemies ran from the flashbang but ended up in a worse position, a fireball was neatly dodged and the mage almost cackled as he overcast big enough to hit EVERYONE (including his Spirit and a friendly drone, but it was Stun damage anyway) in the room, so nobody could afford to run away.
So I hope R&G will make it to Gen Con, because that rule is awesome for tactics on both sides.