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.