Technically, this is true. But around March 1st, 1993, Montreal was third in the league in scoring with 270 goals (1o goals less than 1st place Detroit, 2 goals behind 2nd place Buffalo) but they just had an abysmal final 19 games. Montreal was the first team in the league to 40 wins in 92-93. They just finished poorly, which is why history thinks of them as some middle road team who was carried by Patrick Roy heroics.
You're definitely right about the defencemen. The most successful teams had defence who could score goals (The Capitals were insane that season with Hatcher, Iafrate, and Cote) and it was a strength for the Kings as well, a part of why they made the final that year too.