Ya but when you play smart and hard throughout you reduce the chances of bad stuff like that happening. You'll never 100% prevent it from happening but in a series if you play smart and hard enough, and if you truly are the better team, odds are you will win... or at the very least not lose the series 3-1.
There are other teams that are tough to play against throughout like isles, vegas, bruins, blues etc. We are very inconsistent from game to game and period to period with our battle/urgency level. and when the legs are n't there, you have to pay high attention to details and be mentally engaged as far as d coverage etc. We often aren't.
You aren't wrong with your last two posts but I think you're ignoring just how difficult the task is given the context. It's hard to get in the swing of things with 1 preseason game, the Hawks have a veteran and winning core, the Hawks got more calls, and shit happens. It's not like Pens don't know how to win either. The Oilers were more likely to have these lapses than many teams just look at the core:
McDavid - U25
Draisaitl - U25, second playoffs
Hopkins - Second playoffs, I thought he was excellent
Yamamoto - Rookie
Athanasiou - Maybe a core guy going forward but he was coming from a losing team and was still adjusting. 25.
Nurse - First season being hard matched against toughs and succeeding, 25.
Bear - Rookie
Klefbom - Coming off an injury, second playoffs. Should have been better
Larsson - Got hurt, may of been hurt in the games he played. Wonky back.
Koskinen - 1st playoffs, sophmore in NHL, not a strong #1.
This is not a veteran or experienced core. They didn't get the bounces. I was disappointed but I don't think the team was all that bad nor do I think effort was an issue. Only Hopkins, Klefbom, and Larsson are in their prime. Even McDavid and Draisaitl are still learning how to become more complete players. Not to say you can't win with them already, but the Oilers don't have that veteran 2way center they can lean on instead. Draisaitl is almost there, and in all honesty took steps this playoff to being it, but he's still learning lessons and at his age that's reasonable. They got bad luck but and could have done more to help that but their best days are ahead of them still.