re: Ruling on SELA catcher tossing ball to his dugout

Well based on my interpretation of the rule when I umpired for a few years, I would have ruled that the coach stopped the ball from going into the dugout and thus became an extension of the dugout and awarded the runners two bases.

Edit: Seems similar to a few situations I saw a few times which was ruled the same way by multiple umpires. For instance, if the coach is sitting on a bucket calling pitches outside but in front of the dugout entrance and the ball hits the bucket on an overthrow, if it is deemed that the ball would have went into the dugout it has been ruled as such.