Despite your warped narrative of the Zuccarello play, you can't have had your eyes open during these playoffs if you believe those were Muzzin's two best plays. He was outstanding. You can color it various degrees of good if you want, even average if you're reaching, but to suggest those were his best moments is shudder-worthy. Sorry.
The Zucc one happened game 5 (elimination game) with about 12 left in the 3rd. The penalty led to Gaborik's PP goal to tie the game and send it to OT where Martinez scores. The Kings would have won that series anyways, but that was a very important goal as far as closing out the series.
The elbowing on Logan was in the game 7, in the second. Doughty's goal on the ensuing power play tied the game. Kings went on to win I think 5-1, but at the time that was a huge goal.
From a skill stand point those were not his best 2 plays. From shifting the momentum in the game stand point. Both of those penalties led to tying goals that helped the Kings clinch both series. So yeah, I would argue they were 2 of his biggest plays.
On the clip can you go back another 10 sec where it's a 50:50 puck and Muzzin sticks his leg out when he doesn't know if he's going to come up with it. If that is Muzzin's normal stance he needs to correct it before he comes up with a knee injury from having his leg so far out. Any other player maybe... But I've seen Muzzin panic way too much to believe he didn't initially try and get a piece of Zucc.
Edit: Looking at the clip I see 3 NYR players behind Zucc... So he had plenty of support behind him and no need to take Muzzin down if he didn't come up with the puck.
Edit: For fun since this is the Muzzin thread. I'd say there's a decent chance we see Muzzin traded after this season. He's up for a new contract and probably going to be looking around Voynov money. Now keep in mind Lombardi's plan for the D this last year was
RR/DD
WM/VV
JM/MG
That was before RR, and WM had trouble keeping up with DD and Muzzin got tossed in there. If the choice is between Muzzin making 4+ and a 230+ UFA vet for a similar cap hit I'm not sure which way Lombardi will go.