I think there’s an interesting discussion to be had about Broberg’s impact since being elevated to a pairing w/ Nurse. Dismiss it if you want, but sometimes it's fun to make a bold claim in an attempt to generate discussion.
Since game 3, the Nurse - Broberg pairing has stabilized the oilers' entire defense. Game 1, Nurse and Ceci got eaten alive. Game 2, Nurse played limited minutes with Desharnais due to injury and again got eaten alive. Game 3, Nurse was paired w/ Broberg and the tide began to turn. Nurse was a positive player for the first time in the series and they played well together despite the loss. Games 4-6, that pairing has looked really good IMO.
I view Bouchard as a product of the oilers offense as much as a catalyst for it. He scores a lot of points in relatively sheltered offensive usage and yes he is very good on the PP, but I think he is getting overrated. He doesn't play on the PK and let's be honest, Ekholm is doing a LOT of heavy lifting defensively on that pairing.
Bouchard's 5 most common linemates at 5v5 this series: Ekholm, McDavid, Hyman, RNH, Draisaitl.
Broberg on the other hand is averaging 1:30 PK TOI in the playoffs. He is taking tough defensive assignments w/ Nurse and starting in the d-zone 54.9%. His 5 most common linemates at 5v5: Nurse, Henrique, Janmark, Brown, Kulak.
The Nurse - Broberg pairing taking hard matchups and not being completely overwhelmed the way Nurse and other partners were earlier in the series has been a huge part of the oilers turn around IMO.