I don't think we get all of that. Vancouver would be paying Boeser, a 1st and Willander for Kyrou. That is a lot. I don't see a good chance for elite players in that either. We aren't getting a high first from the 3rd team who is getting a rental, and teams with high firsts wouldn't want a rental. If Boeser comes signed, Vancouver isn't giving up another first and Willander.
So that's two mid to late 1sts a B+ prospect, and a 2nd round pick. those are all a crap shoots and rarely lead to an elite player. Willander could be elite but isn't a guarantee.
Then let's look at the Duchene trade. Avs got the following: Girard, Bowers, Ott 1st (Byram), Kamenev, a 2nd (traded for 2 later picks, getting Annunen and Zhuravlyov), 3rd (Steinburg)
Breaking it down -
Bowers (25 yo in AHL and not producing) + Matthew Steinberg (24 year old AHLer) + Zhuravlyov (left for KHL) + Kamenex (washed out and left for KHL) = 0
Annunen = Backup goalie who could have a bit more upside
Byram - traded for Middlestadt = Middle 6 C
Girard - Good top 4 D, but not on top pair and not elite
So where is the elite talent Colorado got? They got 2 solid pieces with Girard and Byram. But neither is elite. Neither is as good as Kyrou. And that was one trade where Sakic did damn well. If we can get a crazy haul for Kyrou, ok, maybe we pull the trigger, but i wouldn't expect it. That is not the norm. You said coming up with examples is your specialty and that is all you came up with - 1 trade for no elite