That guy 100% can see him in his peripheral. He knew what he was doing.
My thing is though, let's assume Pelech was trying to set a screen or obstruct or redirect Zibanejad in some way. What's up with Zibanejad gliding across the entirety of the center circle without even taking a peek in front of him? He takes a peek before he gets to the circle, then he just glides through the circle completely oblivious to everything around him. One single glance, a half step to the side, it's not even a collision.
Pelech didn't do anything wrong, even if he was hoping to catch a piece of Zibanejad on the way by. That's a play that happens a a dozen times per game, but isn't noteworthy because the guy in Zib's shoes has, as Larry Brooks put it earlier in the year, "spatial awareness."