I got that same feeling, but I don't think it had to be that way. The premise of the twist was fantastic, especially considering it is not far fetched at all and as I said, it brings back in the idea that we really are all living in anarchy, with no rule of law if the law keepers are law breakers too... BUT, the way it was carried out and went down was non-climatic.
I too thought they were going to start a shoot out. THey could have played that up more. Ah well...
In my mind, the climax of that episode was Jax's conversation with Tara. What will he say? That was amazingly well done, considering all that lead up to it, the only thing that would have made it better would have been if he had talked to Opie after, so that we found out when she found out.
Still great though. Love this show.