Leafs was coming off a long road trip with player who didn't saw their family/ wife / child a lot. Exemple Matthews/ Marner probably be at home like 2-3 day max last 45 days. It was a pretty challenging schedule for leafs.
Just as exemple, you didn't saw your child a lot for several days, 1st day at home you probably try to have time with them and don't necessairly get a lot of rest. So maybe level of energy would be as high 1st game after long road trip... Hockey player still human at the end.
The human factor shouldn’t be a consideration. Remember when the Red Wings traveled on a game day in a blizzard to Toronto and had all these issues getting to the hotel etc? Beat the well rested Leafs who were just comfy and cozy at home. You look to create excuses for this team and then you realize they’re just never ready. It’s too much.