You're making several assumptions here.
First, what makes you think this deal for Cozens was started and finished this morning? It could have been happening in parallel with other negotiations and SS could have been playing both teams(or all three including Vancouver) off each other. Second, what makes you believe that it was not those teams that you mentioned that made the initial call to gauge the price on Norris?
Since you seem to be upset about this trade, you of all people can appreciate that Norris was probably on a lot of teams' radars because of his production and goal scoring prowess. And let's not selectively ignore that the same media you're using as a reference to put this trade/Cozens down is also reporting that numerous teams were interested in Cozens as well.