Wilson made the mistake of leading Lockette too much on the throw, opening a window for Butler to undercut the throw. Great defensive play, poor throw.
But, and this is from someone who doesn't rag on playcalling much if ever, an epically bad play call.
You're going to tell me that you would rather put the ball in Ricardo Lockette's hands instead of Marshawn Lynch's? To me, you win or lose with your best player getting the ball in his hands, not your fifth best option. I would never have considered a pass on that play, but if they did, it would have made more sense to get Wilson moving on a bootleg to at least present the option of a run, and make it easier to throw the ball away if no one was open. Throwing the ball to the most congested area of the field with a shorter QB is an unbelievably bad strategic decision. I put all of this on Pete Carroll - he has the power to overrule any play call, and he let it go.
They also committed a bad error in wasting a timeout on the drive when they nearly let the play clock run down. With that timeout, they could run four times to score without the clock running out on them.
Brutal way to lose a game. I'm glad that I'm not a Seahawk fan.