I think it's great if Dumais goes back, scores 2.4 points per game, and gets a crack at leading teams to WJC gold and the Memorial Cup. Should be a great experience for him. I think it will make him a better player.
WJC notwithstanding I see things like this in Dumais' case; the most important part of his road to becoming a full-time NHLer is through shoring-up his physical play/lack of strength as much as possible, simplifying his game to be a bit more direct, becoming better defensively, and improving skating.
A lot of those flaws simply require time and practice, no matter the league.
But where would Dumais be more able to perfect those facets of his game?
In a more "pro" setup like the AHL, with its more rigorous training but tough bus travel and tougher physical grind throughout the year?
Or a slightly weaker CHL, where he won't get challenged as much, but also potentially with lesser pressure and greater opportunities offensively, and potentially more time to go to the gym?
Personally, regardless of eligibility I think the AHL would be a bit too big of a step-up right now for where Dumais is at as a player despite him looking pretty impressive in the rookie tourney and at camp for the Jackets. Fact of the matter is that the AHL can be a difficult league to play in, moreso for rookies and youngsters that aren't fully-matured physically, which would both describe Dumais in this instance.
So yeah, I think it's a great thing that Dumais gets to build yet more confidence in the Q while experimenting and growing his game without pressure rather than having to adapt to the tougher, rougher AHL.
Anyways, that's it from me. Hope you all have a nice day.