Nope I had thoughts that he could be a bust. Hell even MacKinnon himself thought he could be a bust but that's irrelevant right now.I’m sure you thought the same thing about Mackinnon in his sophomore season...
Are you trying to use the Leafs fan argument? Matthews had the better first few seasons so he must develop to be the better player? Turn off the Playstation and realize player development isn't linear, players don't just magically improve the way MacKinnon did, he's an outlier not the norm.