Vegas cheated the cap by parking Stone on LTIR until the regular season ended, then brought him off the roster for Game 1 and "loaded it all up" for a playoff run.
Also: in doing this, Vegas secured a 1st-round matchup against Dallas, the top seed in the West. And, if it wins that series, it gets a 2nd-round matchup against the winner of Winnipeg-Dallas, which is effectively a 2 vs. 4 matchup in the West. Because, as everyone knows, the easiest way to win the Cup is to ... [checks notes] ... be the 8-seed, be guaranteed not have home ice advantage at any point in the first 3 rounds, and set yourself up to play possibly the top-2 teams in the conference and then maybe the #3 team after that.
It's 58-dimensional quantum tetrahedral chess. And I'm not saying everything is 100% fine here. [Anyone wanting to drag up prior comments: note where I talked about responding to facts as they are presented and adjusting views as needed.] I'm saying if prioritizing having everyone for the playoffs was more important than playoff seeding, Vegas set itself up for the most difficult path it could in trying to repeat ... so either this will be a hell of a playoff run on the way to victory, or it will fail at some point. Which, seems like a pretty ass-backwards way to go about repeating as champions, but to each their own.