Yeah I watched some of it..
Hockey playoffs are funny, many times the better team doesn't win... Kings won the cup 3 years ago as an 8 seed..They weren't the best team that year..
Lucky puck bounces, or like you said hit the post, or not, and/or a hot goalie and the weaker team win the series.
I know the Kings were better than the Rangers, and at times they dominated. But still a weird bounce of the puck here, a penalty call there, and the series could have easily turned out quite differently.
Again I'm just nit picking..