If Calgary ate 50% of his salary and attached a 1st round pick and a prospect you might get a bit of interest from someone like Pittsburgh. They did the soft rebuild type deals taking back Glass and Kevin Hayes. That's about as close to a "contender" as I can see Huberdeau getting.
That's not to suggest Calgary should do that deal, but that's where I see the value.
A 5-7 mil Huberdeau is still a reasonable contract. An 8+ AAV Huberdeau is the issue because he's overpaid. But he can still contribute He's still a top 9 player and at around 5-7 mil, he'd be an excellent piece to inquire about, in the same way Pittsburgh did with Phil Kessel in 2016-2017 when they won the cup with him by creating a third threat to feast on other team's bottom 9 after Crosby and Malkin's lines.
The Flames would get assets as of right now if Huberdeau was retained 30-50%. It's around the <25% retention where the value is future considerations or asset added on top. If a situation where the Flames have to add assets or retain heavily, I get why the Flames wouldn't bother with a trade. Flames also have the cap space to facilitate trades too, so they should be able to weaponize it to ensure they don't have to add assets to Huberdeau to move him.
Honestly though, I've liked his attitude even through his struggles. I really do hope we figure out a way to bring his production back up past PPG.
OP's post is junk though. That hockey rumors website seems to like twisting legit information into fanfics. Plus it's quoting a comment that seems like an obvious thing. Who wouldn't waive an NMC to go to a contender? That type of speculation is about as accurate as, "If given a chance, would you like to get a chance to score more points?"