It has been a theme for the Leafs for years. They always play down to the lesser opponents and often get beat because of it. There were at least 5 or 6 games last season that the Leafs could have sleepwalked their way through and easily won but completely fell asleep at the wheel and lost, ultimately costing themselves the Presidents Trophy. It would appear they're heading down that road again early this season.
Not only are the fans disappointed in their efforts, booing the Leafs at the end of the second last night, but Sheldon Keefe called out his "Core 4" last night, stating that his elite players didn't look very elite. John Tavares also had this to say about his team's efforts.
The key to what Tavares is saying here is that having off nights is okay, which it is. But the team has to find a way to compete when they're having those off nights. Unfortunately, as mentioned above, the Leafs' off nights usually come against lesser opponents. At some point, you have to acknowledge that as a bad habit rather than a bad outing.