It's only a terrible look if you refuse to acknowledge:
- He was on the ice for over 2 minutes already and was not just standing around.
- The player coming off the bench is his defensive cover.
- He's gliding because he did skate hard enough to get back to cover the 3rd guy high.
- He's resting himself to use energy to get the puck out of the zone without having to ice it.
All of these things are done to help prevent a bad situation. He certainly can't help that they scored. He can't help that Antipin was caught too low in the offensive zone and forced a slight 2 on 1 that caused Beaulieu to have to play off Williams farther than he should have. Look at this way. If that puck is a save with a rebound or into the corner then Eichel would have to defend against fresh legs of Carolina. If the puck does not go in the net and stays live, Eichel is in perfect defensive position to play the 3rd guy entering the zone.
He was on the ice for 2 minutes during a power play. I suspect he did a fair amount of standing around during that time.
I'll defer on whether and to what extent Eichel had his defensive cover responsibility in mind when he started gliding through the neutral zone. I have my doubts.
I did see Eichel give a couple of strides when the play went the other way. Good job there, I guess.
I saw him resting while the player with the puck dipsy-doodled for a crucial 2 extra seconds and roofed the puck.
Your analysis above seems cogent, and quite plausible. I'm just not convinced that's what actually happened, insofar as Eichel's thought process is concerned. Maybe it did.