One year of Karlsson is more valuable than Horvat locked up. You just ask Karlsson what teams he would re-sign with immediately upon trade, and then you'll easy get 3x more value than Horvat at minimum.
Why is this so hard for certain canucks fans to understand?
Then why wouldn't Ottawa just deal with that 3rd team in the first place?
Any talk about Karlsson's trade value is moot unless we know what his intentions are. Will he test free agency, or is he willing to negotiate pre-trade and immediately sign an extension with a new team? It would be disastrous for the Canucks to trade Horvat for Karlsson then have him choose to test the market, as no rental piece is going to return that much. From the Sens perspective the most likely two situations are they're either going to get a decent return for Karlsson if he's willing to play ball, though in these situations it will never be ideal, or he decides to test the market and they get screwed with a return a fraction of his value.
The "proposal" is just a bad idea all around because it kind of skirts the vague in-between. To low and/or wrong type of trade for an extended Karlsson, but too much for rental Karlsson. Utterly pointless because the Canucks aren't in much of a position to be trading like that either way.