"Dumb" depends on the situation. Trading him right now for anything other than a better top-6 forward wouldn't make much sense, sure. But after another 30-ish games if we need to open a roster spot for Mursak, who knows. Maybe Hudler will have 40 points and look like an all-star, maybe he'll have 10 and be a healthy scratch half the time.
We don't yet know how Hudler will perform. We don't know how guys like Emmerton, Brunnstrom, Miller, Eaves, etc. will perform. We don't know what our team needs will be, or if we'll need to open a roster spot. Speculating that Hudler might be a good trade candidate in 2 1/2 months is no more "dumb" than speculating that he'll still be a top-6 forward at that point.
You've written a lot of words here, but really haven't said much.