As noted already, this a massive benefit of hindsight. Just go look up the thread. Calgary was near unanimously declared the winner and predicted to go on a massive run last season. Nobody expected them to fall off the cliff the did and Huberdeau to have the biggest point decline in NHL history. At the time of that trade, it looked like an absolute win fall for the Flames.
The key factor here is Winnipeg got significantly more than anyone here predicted, and with much more restrictions than Pettersson will have in a hypothetical trade. PLD essentially said Montreal or bust, then added a few teams (or just LA for all we know) when it became clear the Habs weren't giving up anything major for him. Pettersson simply wants to play for a winner.
Not only will the Canucks have a much larger pool to work with, he's a much better player than PLD. It's absurd to think teams won't offer the likes of a Nemec or Jiricek type prospect.
You think a team like Columbus, who has desperately needed a #1 center for the last decade is going to play hardball knowing they'll absolutely be in a bidding war? Not saying they're the ones pulling the trigger but just a quick example.
It's incredibly rare for a 25 year old, number 1 center to potentially be available via trade. Even teams cap strapped will make room. Vegas did when they had a chance at Eichel.
The Poll had them at just over 50%, if that's near unanimous than I guess you're right. These things are going to be skewed by a simple factor:
People are just absolutely unwilling to believe that most player decline near 30
WPG got nothing of any note for PLD. Something around 2 2nds in total value.
Teams are going to offer good things for Petterson, but they're not going to do things like Johnson & Jiricek. Cap is too valuable.
Vancouver has no cap space, they can't take more than 2M back. How many teams do you see with the ability to add this contract where he'd want to play? The pool they have to work with isn't that large.
There are only 5 teams with sufficient cap space: Detroit, Nashville, Buffalo, Chicago, Anaheim.
Detroit - Can't sign him because their cap would implode next year. They're not really a contender but they'd be a playoff team with him.
Nashville - They could, they don't have high end prospects. Also probably not a contender
Buffalo - They could, they have high end prospects. Possibly a contender with him certainly a playoff team with him. How do they afford him next year?
Chicago - High end prospects, not sure this move fits where they are in their rebuild. Probably not a contender right away. It's an intriguing landing spot.
Anaheim - They could certainly use everything he brings to the table, and they have prospects glare. But they're not really a contender or even a playoff certainty
Nashville can't make a suitable package, Detroit can't resign him; and it seems unlikely he'd go to Anaheim. You're left with Buffalo/Chicago.
If you want to squint at it and say Columbus finds someone to eat cap maybe they squeak into the conversation. They certainly can fit him next year.