Well, MTL has some exciting young talent, and maybe Laine talked to the Elder Koivu before signing and heard positive things about MTL? MTL certainly has more of a Euro vibe than any other city, and while they have been down a bit recently, has an incredible hockey history and tradition. Hell, they were in the Cup finals just a few years ago, which is more than any MN team has ever done.
Having said all that, I do think that Laine would've done better here with either Boldy or Kap as his linemates. Both of those guys can score, but are vg passers, as are Rossi and Zucc.
I'm thinking that the reason the deal was made with MTL was more about them taking all of Laine's salary w/o retention, while we couldn't possibly have. I think the "Laine doesn't like us" angle is something that BG sold to the local press to avoid the perception that he couldn't close the deal, partially because he squandered cap space on underperforming or untalented acquisitions.