I don't see why he'd sign an ATO, and I don't really get the Habs incentive to offer him one. If he plays less than 9 games his ELC will slide anyway, but he'd get his 70k bonus this year. The Habs aren't going to be cheap over 70k that they are going to have to pay eventually (the bonus will just be taken out of his final year). This isn't like Luke Kunin, who was a late birthday (therefore signing in his 20th year), who the Wild wanted to sign an ATO because any AHL games would have counted as a burn year. For example looking at the 2018 draft, Oliver Wahlstrom and Quinn Hughes signed in March of last year. But, because Wahlstrom was an early B-day, his contract slid, whereas Q. Hughes burned a year regardless of the fact he played less than 9 NHL games (5 in total).He might get an ATO. I think it's too early, myself. I think he's a good skater, just not that fast. Good edges and imagination, though. A couple more years and his man muscles will kick in, hopefully, giving him an extra burst.
The guy has proven this year that he can score consistently at a higher level of hockey. It's not exactly a newsflash that many scorers don't pay attention to the other end of the ice. He can work on two way play, but MTL drafted him for his sniping ability, not to be the next Bob Gainey.
I mean, his college eligibility is done the second he signs an ATO, it makes no difference to the Habs if he signs an ATO or ELC, its not like they are going to not-sign him to an ELC, and it makes no difference if they sign him to one in March or July as long as they don't play him in 9 NHL games.