Yes, when you have gamebreakers who are especially centres (lol) and are scary elite playoff performers who can tilt the ice at a disgusting level, no amount of "depth" will save your sorry ass. Players like McDavid + Draisaitl are a guaranteed 1/2 playoff series win every year against any type of depth or competition just like how Peak Crosby/Malkin were in their prime. We just saw McDavid alone will Edmonton back from a 3-0 in the Finals just based off him going completely crazy in games 4 and 5. The cats are lucky Drai was hobbling, because I can only imagine what type of damage he would've done if he was healthy. And as much of people like to talk about Kessel being the perfect complementary player on the third line for those back to back Pens teams, the only reason why Pittsburgh didn't win more cups from 2011-2014 was because of Sid and Geno getting injured and Fleury shitting the bed to an astronomical level during those years. I seriously don't think a hypothetical Pens team without Phil even still loses in 2016 and 2017. 87/71 would still find a way to get it done.
SIDE NOTE: But the more I think about it, the Pens realistically should've been the TEAM and a dynasty of the cap era with both healthy Sid and Geno, this team honestly could've won at least 5-8 cups and maybe even more if Rutherford wasn't a dumbass in 2018 with the chase of truculence. The fatigue would cave in eventually, but there both built different. It's a shame.
I'll give another example. Roy/Forsberg/Sakic were known to get dominated by Detroit possession wise back in their playoff battles throughout that legendary rivalry but they were still collectively better than half of Detroit's team and could easily take over a series when needed. Game 7 in 2002 was a wet egg, but mythical lores like Forsberg's 27pt run after sitting out the entire season and his back-breaking silencing game 5 OT win to give Colorado a 3-2 series lead in game 5 are just a testament to how scary a superstar can be in clutch moments against a deeper team that is LOADED with depth. That Wings team had Yzerman, Lidstrom and Fedorov but still, that 3 head monster trio combined were just players who straight up needed 1 chance to capitalize on you.
Depth can take you far, but It doesn't matter in the slightest when those said superstars on the other team decide to lock in and take over. I've seen it firsthand as a Flames fan, Mackinnon in 2019, McDavid and Drai in 2022 lol to come to the conclusion that Depth is OVERRATED.
I would take STAR POWER over depth any f***ing day.