I know what you mean, and of course he could sell the BA motor now rather than potentially breaking it. From a tune perspective, shouldn't be major problem to swap motors and not need a retune if injectors, turbo, etc is remaining as is. I'd say you were unlucky though - a healthy BA motor that is well tuned shouldn't break that early unless there was some other failure, fuel issue, etc that triggered it. Of course depends how much it gets beaten up when driven too!