This is pretty true, but we'll have to wait a bit before we throw out Boudreau's system entirely. His Washington teams never wanted to seem to play defense, and never had good goaltending. You look this year, where Anaheim's one of the top shot blocking teams in the league, one of the better teams in terms of keeping shots away from their goalies, and two pretty solid netminders to boot. That already is a huge difference. His system might simply not be a good playoff system, or he simply might have been at the helm of a team that simply wasn't built for the playoffs. We'll see.
As far as advanced stats go, I know some Ducks fans, myself included, mainly take offense at the notion of what those stats attempt to imply. The Ducks don't have a great Fenwick or Corsi, so it's assumed they're not that great of a team. But it's worth pointing out that both of those stats have two potentially fatal flaws, and that's that the thing they measure and the thing they attempt to measure are not necessarily the same thing. Both of those stats attempt to measure possession, however they don't necessarily measure that, they measure attempted shots. When you have a team like the Ducks, who are very selective of their shots and don't put a lot on net, and who also encourage a lot of shots from low percentage areas, you know right away they're going to be on the lower end of those stats. With a lot of their shots being quality scoring chances, and the lack of shots they take, it's not too surprising their shooting percentage is high.