Kane was in the "D" position. Normally the forward gives the player over to the defenseman who would force him wide, and the forward picks up the trailer coming down the slot. Just as Eichel gave him over to Kane, Kane moved to play the slot, and Eichel couldn't catch him. The error was Kane's for not playing like a defenseman.
I'd like to see Eichel and Kane split up in OT so they have a more defensive minded player with them. Put Kane with ROR, and ERod with Eichel.