Last year we were 6-1 (I think, including playoffs) in 1 score games, with an almost identical team and coaching staff. So maybe we're just evening out?
Honestly though, I think to some extent it can definitely be attributed to luck, I think some of it also can be attributed to poor coaching decisions and bad execution / mistakes by players in crucial situations. In any of the 5 games, you can point to a missed call, or a bad call against us, or an unusually great play made by the other team. In any of the 5 games you can also find a play we didn't make, or a really bad play call that burned us.
It all adds up...