Leafs HFboards love scapegoating players, Marner and Liljegren being the two biggest current ones, but there are always multiple. Leafs have been a very frustrating team for a long time, and the fan frustration constantly bubbles over into hate for specific players/coaches. Doesn’t mean it’s rational, though, or in line with what Leafs management think.
Liljegren is in a similar position to younger versions of Nylander or Kadri - a young player with clear potential who hasn’t hit it yet. Not that Lily’s potential is as high as those 2, but he’s similar in being a skilled/talented player with a lot more to give. Coaches are always gonna focus more on these guys because of the potential payoff, so it will often seem that they’re in the coach’s doghouse, but the coach is just trying to get the most out of them. It doesn’t mean they’re worse than AHLers, it just means they need to work hard and clean up their weaknesses to reach their potential. Nylander and Kadri did so, hopefully Lily can too.