You are talking about a team trading away their Ace in Kluber before the season began when they were expected to run away with the division. That is not what happened, and they didn't know what Bieber and Plesak were going to be. They traded from a surplus, expensive position, for a need. It was reported by multiple outlets they did not want to pay Bauer 20+ million in arb. It has nothing to do with him throwing a ball into the outfield.