Shields fucking withstood (barely, but still) Hendo's overhand right. There's almost no way GSP finishing him no matter what he did. It was a total lose-lose fight for him from that perspective, and that's not even accounting for the eye-poke that reduced his effectiveness even more. There was no way he was finishing Shields and it's not like people are giving him much credit for the win even though Shields has pretty great credentials.