Johansen and Scheifele give me hope.
Anyone writing him off already lacks perspective. He has clear things to work on, as someone who has closely followed him for 4 years I wish he took more of these steps in junior. But, his offensive track record at the OHL was absolutely ridiculous and he's a very smart player. They basically need to give him this list and tell him that if he can improve these things, he will be in the NHL and a top player at that.
1: Improve your skating
2: Improve your strength on the puck
3: Clean up your release, at the NHL level it's not always the power behind your shot, but how quickly you get it off or deceptively you get it off.
4: Fight harder for pucks
The strength should hopefully come with age, both RyJo and Scheifele were lanky guys when drafted and filled out. The skating is an issue, but he needs to just get to league average so he's not constantly behind the play. Fighting for pucks is just effort, and having more speed to be there in time. The shot will take a bit of work, but he already has good power and accuracy, its about making the release quicker and more deceptive.