Players want to maximize their market value, winning Cups is a distant 2nd. It's really mostly about the money and where their family wants to reside.
Only the very special ones like Brady in the NFL, Crosby and McDavid are likely to take a paycut to help the team and, make no mistake, McDavid getting $16m/yr would be a paycut because he could get so much more if he wanted. Drai and Bouchard are going to squeeze every dime they can from the Oilers and that's their right.
The reality is that Game 7 and next season was/is their best shot at a Cup. Doesn't mean they can't thereafter but it will be exceedingly more difficult.
Well, its going to be exceedingly more difficult because of decisions that are made by the players though, lets not forget that. McDavid is in that "Brady space" where money could be a distant 2nd or 3rd priority, just because he has made (and will continue to make) SO much of it. He is already generationally wealthy right now.
I don't knock anybody for chasing money, people have their own desires and value things differently. All I'm saying is that if McDavid doesn't take a pretty significant pay cut, we'll know he values additional wealth more than winning Cups. Nothing wrong with that either, he is 100% entitled to have his own hierarchy of desires/wants/preferences. But lets not pretend that his hands are tied and he can't influence the chance he wins a cup, because of course he can. Every dollar he gives up, is a dollar that can be given to a depth player to help win a cup. You can't say "winning is the most important thing to me" and then in a cap world also say "I'm going to try and make as much money as I can". Those statements are mutually exclusive.
The above applies to Drai and Bouch and every other player as well, but the context is very different. Bouchard isn't going to retire with $250M+ as the BASE level of his earnings like McDavid will. McDavid could play for league min for the rest of his career and still have generational wealth based on what he has already made and the $5-7M/year he makes in endorsements.