I think that's sort of the reason, right? Hoping for that over pay. More than half his goals came in 3 games. But also he's at an incredible 15th place for shots on net amoung the NHL.
Do they think Frank the Tank is going to do this again next season, or keep it up through-out the rest of the season? If so, you got yourself a good trade piece, or potentially you have a piece to continue going forward with. But they aren't a playoff team this season, and who knows about next, so if you can find a team throwing more at you than you would have received for him initially, it might be worth making the move rather than waiting.