You could be right, although I thought there have been enough Jets fan fully open to trading Laine (assuming proper return). Sure, anyone has a price but for those players fans consider core pieces to build a team around, most fans would generally just say, NO. Not happening, <player x> is simply not available. Laine, unless I'm wrong, doesn't seem to have that level of confidence amongst the Jets fans. How many Habs fans have come out here and said, Hey, who wants Suzuki, what do you want for him? Or for Kotkaniemi? Or Pens fans go, "Who wants Crosby/Malkin? What would you offer?". Or Ovi for Washington, etc. etc. It's usually those players who have disappointed and haven't nearly gotten close to their hype, that are been offered by their team fans. Some exception being, players, that for some reason or another, have become possibly available because of contract issues or personality issues (<player x> wants out of the team) etc. etc.
As for Montreal fans offering garbage...well, I think it's generally true for all fan bases. It's rare a fan would offer something that is actually decent simply because they value their own players higher than outside fans would, even if they are "table scraps".