I like Kane as a player, but if you want to be regarded as one of great player you need to score clutch goals in games like these, especially if you are striker. Even some midfielders and defenders are remembered more in history because they scored some of the most important goals for their teams, and by the looks of it, he won't be regarded as such, despite scoring ridiculous amount of goals every season.
He still has time, and this doesn't make him any less world class striker, but I feel this is good opportunity missed to be remembered as potentially great.