That is the nature of trying to be the best there is. With competitive differences comes some disagreement, and when the stakes are this high, there is bound to be some tempers flaring. Evander Kane wasn't his best last night, and neither was Leon Draisaitl, even though they were both able to record a point each.
However, the test of a good team is to see how they can respond to a moment like this. While they could not get it done last night against the Leafs, the Oilers will have an opportunity to bounce back today against the Ottawa Senators. This, if things go to plan, should be a way for the team to bounce back against a struggling Senators group.