Raccoon Jesus
We were right there
I would suggest to read their board.
Muzzin is a 2nd pairing defenseman. Those are no rarity. He has his fair share of great games but is quite often a liabillity too. We traded him at the highest price.
The price for similar d-men is the same. See: Shattenkirk.
If I were a team with an open window and I could replace Hainsey and Gardiner with Muzzin for the cost of an average top 2-3 d-man I'd do it.
Durzi doesn't help them for years. Grundstrom disappointed them in camp and if there's a position they have redundancies at it's forward. The pick is a mystery box. Those guys all look good for us now but it would be like saying we lost the trade with Philly because Simmonds and Schenn went on to have great careers (obviously outcome TBA for Toronto but Muzzin isn't the problem).
I'm not really disagreeing with you in general, I just think both things are true--we got a lot back and TO is happy as Muzzin will be their 2nd best d-man this year and next if not longer. Win-win.