At the risk of being a little rude, are you sure you wouldn't be happier as a Leafs fan? They always score at a strong clip, never mind the pesky turnstile at their own net. Offense is what matters, if your opponent scores against you it's just because they have More Offense, thus proving that offense is what matters.
For the record, Danton Heinen has been on ice for 15 ES goals for, 9 against in his playoff career, and of course he rarely gives the opponent a power play. (This season, 16 goals for to 11 against.) Until this bizarre coincidence comes to an end, where the Bruins consistently outscore their opponents with Heinen on the ice, you might consider there is something in it.