It would be hilarious if for every other pick they did the fish throwing skit to announce and then for the Leafs pick they do an automated "Siri" voice over a blank screen announcing they're taking McCann or Dermott, just to troll us Leaf fans and whoever posted that video
Why would they care about trolling Leaf fans? We're not that important. And the reaction to the leak by the Seattle front office is probably "Oh, well, the Internet found a pick out about 36 or so hours early." I doubt they're seriously concerned and probably figured that some of these would get out ahead of time, since from what I understand, they're shooting things like this all over the city.