Seeing Ehlers (2a in his last 8) and Larkin (4p his past 10) slow down after their torrid starts makes me glad the Leafs stuck to their guns with Nylander. While putting up 40 points or whatever at the NHL level would be a solid rookie season, scoring at his current 111 point pace in the AHL while also polishing his overall game is so much better for his development.
I think about it this way. A guy in a slump with his team losing has to figure out how to get back to playing the way he was, just getting back to his baseline, because his team needs him to be productive. That's time and effort he isn't spending on his development, trying to get to the next level, during some of his most important formative years, and extra pressure to worry about.
But in the situation Nylander is in, he's going to produce no matter what, so he doesn't need to worry about slumps or losses. He can focus entirely on improving his game.