You just told me, last week, that the Canucks were basically a playoff team. That having Schenn in the lineup instead of Gudbranson would have made them a playoff team. If you hold that view (and I don't,) then you must hold the view that the Canucks will likely make the playoffs in one of the next two seasons, in which case this trade is not a "blow your brains out" maneuver.
You bring up probability, and it's interesting that you wouldn't do it at an 80% chance, but you would do it at 100% chance. So where is the breakeven point for you? If it's a 99% chance they make the playoffs in ONE of the next TWO seasons, you still wouldn't do it, because of the 1% chance they might give up a top-10 pick? That seems honestly completely disproportionate to the downside, which even for Ottawa meant losing the #4 under the nightmare scenario. So that's all I'm asking; it needs to be 100% for you?
I think I make this trade if it's 80%, and would probably go down to 75%, but not any lower.
I wouldn't 80% blow my brains out for $1,000, but that's a silly analogy because my life is worth a hell of a lot more than $1,000. Would you play Russian Roulette for any amount of money? For an 80% chance at all of the money in the world against a 20% chance at losing your life? I think that's the more interesting question, although it loses track of the actual hockey discussion for obvious reasons, since losing even the #1 overall pick is not the equivalent of suicide. If the actual franchise were on the line, where the team would be folded if they "lose the bet," then the percentages are different.
This is more like, if you had an 80% chance at $10,000 vs. a 20% chance of breaking your foot, would you do that?