We, only play/try that if the player that trys the shot is 100 % sure to hit the kubb in the middel. Or if you have no other choice. In the posted vid. its necessary to hit the baseline kubb, otherwise the other team wins the game. (cheers to the mirakelkubbers)
My personal experience is that the double hit field to baseline is the chance to win the game in the answering round. If the other team only starts with 1 or 2. (happend twice so far) or an option to get the other team out of focus if you can make that shot with the first attempt.
Or its like the hail marry, the only option left ..
btw. thats an upperbraket match at the ec in 2012 .. so both teams arn't out after the match, cause its a double elimination system ..:)