Shortening the bench is sort of Cameron's go-to move. He did it in the world junior when Canada was getting pummeled late by Russia. Which led to Canada not being able to keep up with he Russians. And he still reused to play all the lines.
To be fair, lots of coaches would have shortened the bench in this situation. We weren't in a back to back, we have a big break coming up, we have lots of green players in the lineup, we had an early injury.
The problem is we don't have the horses. If our top 6 forwards and top 4 D were intact, no problem with giving lines one and two 22 mins each, and distributine ~50 mins among the top 4 D, but when you have to give guys like Smith and Chiasson 20 mins, it's not going to look pretty. We had two fourth liners in our top 6, that's a big problem for any team. I'd rather have a strong 4th line and some inexperience with skill in the top 6, because at least with the 4th line you trust, you can try and get better matchups for the top 6, and give them the odd break.
In the end though, it doesn't matter how the lines were shuffled, or the icetime distributed, we had the vastly inferior lineup due to injuries, and with the game being on the road, it's hard to stack all your top guys on one line and keep them away from the checking line. Something like the lines below might look ok on paper, but when the opposition matches it's checking lines every time Turris hits the ice, it leaves some pretty questionable options.
Hoff-Turris-Stone
Prince-Zibanejad-Dzingle
Lazar-Pageau-Chiasson
Dzuirinski-Smith-Neil