When I later rewatched the play I also understood JW's point better.I watched the reply a couple of times and I concur with your assessment of the play. I’m sure had the Leafs scored a similar goal and won the game, non Leaf fans would be calling it a cheesy goal aided by the referees.
The question of captaincy is an interesting one. No question Matthews is ready and it’s up to Tavares to pass the torch.
It wasn't the 63 guy who picked up the puck, it was that after Chychrun made the play on Matthews, Chychrun then carried on and subsequently scored the goal. Matthews didn't stay with him.