I missed this game; it sounded like a fun roller coaster!
Re: ice time
I see the general fan frustration with our best players generally getting not-much time on ice relative to the league standards. Not saying that this is exactly the case (because I don't know), but if you want to get a gain on a copycat league with a lot of the same restrictions, the way that appears on the leading edge is going to be frustratingly different and feel emotionally wrong.
Take playing 5'9" players and giving them top-6 deployment, for instance: a decade ago, you'd be the laughing stock of the league if you played anyone that small... oh, Martin St. Louis was 5'8"? Haha, what are they think-- oh they won the Cup with him playing an integral role?!
So what it looks the Leafs have been doing (especially with Muzzin and Nylander and Kadri's and Johnsson's TOIs), is they want as much first-line/first-pair talent spread throughout the lineup as they can possibly fit in the cap. In a regular season game under regular circumstances, it'll be pretty even at 5v5: 15 min per D-pair, 15-18 min per F group that's not the 4th line. When you're up a lot, then 4th line gets more time. When you're chasing the game, then you shorten the benches and increase the concentration of scoring talent in each of the lines.
You can say I'm carrying water for the coach if you'd like; I just don't think people do things that look wrong to us without a reason they've convinced themselves is true and effective (otherwise they'd stop). So I'm generally okay with there being muckers on lines, and our top end guys dragging boat anchors around in the regular season. That's just standard strength training: let's see how much you can push or pull or score in a non-ideal situation regularly. Whatever lessons and gains gleaned from that prolonged exercise will make you better later.
The facts are these: the playoffs are a grind. Cup winners need to net 16 wins running through a gauntlet of teams that have dedicated themselves to beating you. So the teams that have the most in the tank, that have the most players who can produce more with less time/opportunity, well they have the best chance of making it through that grind.