Chucky was leaving a situation where he wasn't playing the position he preferred and was looked over. Julien started him on a line with two non-NHLers in the playoffs. Domi doesn't seem to be suffering from such a situation and indeed had worn out his welcome in Arizona despite ample opportunities. The organization was awful though, so we can both agree those opportunities weren't all that much.
Cs don't make more points than Ws, that's preposterous. The very best players happen to be Cs but even then, many Ws are as productive as Cs. The leading forward scorer on the Habs was a W for many, many years. The last PPG player the Habs had was a W. Ridiculous statement.
Chucky is also homegrown so fans will clearly see him in a rosier light. Well, certain fans anyway. Domi has been great so far, exceeding expectation. That's all that we can say about the trade at this moment but if Chucky keeps up his torrid pace, something his talent promised many years ago, then it'll look very poorly on the Habs organization.